Seznamy 69+ Atom Fluorine Čerstvé

Seznamy 69+ Atom Fluorine Čerstvé. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. It is used in toothpaste and antiseptics and widely used in … The chemical symbol for fluorine is f. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

Prezentováno How To Draw The Bohr Rutherford Diagram Of Fluorine Youtube

The chemical symbol for fluorine is f. It is used in toothpaste and antiseptics and widely used in … The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. It is a non metal with the symbol f.

Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. The chemical symbol for fluorine is f. 23 2 and atomtrace database. Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. It is used in toothpaste and antiseptics and widely used in … It is found in cryolite, fluorspar, and fluorapatite. These electrons are arranged according to specific rules of different orbits.

21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. It is found in cryolite, fluorspar, and fluorapatite. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. It is a non metal with the symbol f.

It is used in toothpaste and antiseptics and widely used in … Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. It is used in toothpaste and antiseptics and widely used in … It is a non metal with the symbol f. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. These electrons are arranged according to specific rules of different orbits.

The three atomic emission spectra for fluorine can be shown on graph bellow: These electrons are arranged according to specific rules of different orbits. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. It is found in cryolite, fluorspar, and fluorapatite. It is a non metal with the symbol f. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. The chemical symbol for fluorine is f.

Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. It is a non metal with the symbol f. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images... It is found in cryolite, fluorspar, and fluorapatite.

21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure.. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration... Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas.

Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1.. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state.

Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. The chemical symbol for fluorine is f. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0.. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0.

Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. It is used in toothpaste and antiseptics and widely used in … So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9.

Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. The chemical symbol for fluorine is f. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state.. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration.

The chemical symbol for fluorine is f. . So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9.

23 2 and atomtrace database... The three atomic emission spectra for fluorine can be shown on graph bellow: It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. The chemical symbol for fluorine is f. It is a non metal with the symbol f.

It is used in toothpaste and antiseptics and widely used in … Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. It is found in cryolite, fluorspar, and fluorapatite. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. The chemical symbol for fluorine is f.. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0.

Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The three atomic emission spectra for fluorine can be shown on graph bellow: The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. It is found in cryolite, fluorspar, and fluorapatite. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. It is used in toothpaste and antiseptics and widely used in … Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. It is a non metal with the symbol f... Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. The chemical symbol for fluorine is f. The chemical symbol for fluorine is f. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. It is a non metal with the symbol f. 23 2 and atomtrace database.

The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration.. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. These electrons are arranged according to specific rules of different orbits. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. 23 2 and atomtrace database.

Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions... It is used in toothpaste and antiseptics and widely used in … Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. It is a non metal with the symbol f. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas... It is found in cryolite, fluorspar, and fluorapatite.

Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. It is used in toothpaste and antiseptics and widely used in … The chemical symbol for fluorine is f. It is used in toothpaste and antiseptics and widely used in …

21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure... Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. It is found in cryolite, fluorspar, and fluorapatite. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. It is a non metal with the symbol f. The chemical symbol for fluorine is f. The three atomic emission spectra for fluorine can be shown on graph bellow:.. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images.

It has the atomic number 9 in the periodic table and belongs in group 17, the halogens.. It is a non metal with the symbol f. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images.. The chemical symbol for fluorine is f.

It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine.

Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas... Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. It is a non metal with the symbol f. It is used in toothpaste and antiseptics and widely used in … It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. These electrons are arranged according to specific rules of different orbits. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images.

It is used in toothpaste and antiseptics and widely used in ….. The three atomic emission spectra for fluorine can be shown on graph bellow:

The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine.. .. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0.

The three atomic emission spectra for fluorine can be shown on graph bellow: 23 2 and atomtrace database. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. It is used in toothpaste and antiseptics and widely used in … The chemical symbol for fluorine is f. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1. The chemical symbol for fluorine is f.

Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. The chemical symbol for fluorine is f. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. The three atomic emission spectra for fluorine can be shown on graph bellow: These electrons are arranged according to specific rules of different orbits.. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9.

Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. The chemical symbol for fluorine is f. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. These electrons are arranged according to specific rules of different orbits. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. It is used in toothpaste and antiseptics and widely used in … 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. It is used in toothpaste and antiseptics and widely used in …

21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. It is used in toothpaste and antiseptics and widely used in … Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. It is a non metal with the symbol f.

21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure... .. Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1.

These electrons are arranged according to specific rules of different orbits... The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. 23 2 and atomtrace database. The three atomic emission spectra for fluorine can be shown on graph bellow: It is used in toothpaste and antiseptics and widely used in … Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. It is a non metal with the symbol f... Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1.

The three atomic emission spectra for fluorine can be shown on graph bellow: Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas.

It is a non metal with the symbol f. 23 2 and atomtrace database. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure... Lines in the atomtrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from 1.

Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure.. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

23 2 and atomtrace database. . Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. The chemical symbol for fluorine is f. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. These electrons are arranged according to specific rules of different orbits. The three atomic emission spectra for fluorine can be shown on graph bellow:. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images.

The three atomic emission spectra for fluorine can be shown on graph bellow:.. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. 23 2 and atomtrace database. It is used in toothpaste and antiseptics and widely used in … Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. These electrons are arranged according to specific rules of different orbits. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9.

The three atomic emission spectra for fluorine can be shown on graph bellow:. 23 2 and atomtrace database. It is a non metal with the symbol f. The chemical symbol for fluorine is f. It is used in toothpaste and antiseptics and widely used in … It is found in cryolite, fluorspar, and fluorapatite. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure.. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration.. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. So, the atomic number for fluorine is 9, hence, the number of protons in the fluorine atom is also 9. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. It is a non metal with the symbol f. The three atomic emission spectra for fluorine can be shown on graph bellow:. The chemical symbol for fluorine is f.

It is found in cryolite, fluorspar, and fluorapatite. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The chemical symbol for fluorine is f. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. It is used in toothpaste and antiseptics and widely used in … Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. These electrons are arranged according to specific rules of different orbits.. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine.

It is used in toothpaste and antiseptics and widely used in …. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The chemical symbol for fluorine is f. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. It is a non metal with the symbol f. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. It is used in toothpaste and antiseptics and widely used in … 23 2 and atomtrace database.

21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. Fluorine is an element with atomic symbol f, atomic number 9, and atomic weight 19.0. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. The chemical symbol for fluorine is f... Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity.

Fluorine is a halogen gas located in group 17 and has a wide number of uses due to its high reactivity. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. 23 2 and atomtrace database. Fluorine combines with hydrogen to form hydrogen fluoride, which is a colorless gas. The three atomic emission spectra for fluorine can be shown on graph bellow: Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. The chemical symbol for fluorine is f. These electrons are arranged according to specific rules of different orbits. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens.. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. The atomic number of fluorine is 9 and the total number of electrons in the fluorine atom is nine. 23 2 and atomtrace database. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. These electrons are arranged according to specific rules of different orbits.. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images.

The chemical symbol for fluorine is f. . Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.

Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state. The chemical symbol for fluorine is f. The position of the electrons in different energy levels of the atom and the orbital in a certain order is called electron configuration. It has the atomic number 9 in the periodic table and belongs in group 17, the halogens. It is a non metal with the symbol f.

It is found in cryolite, fluorspar, and fluorapatite.. The three atomic emission spectra for fluorine can be shown on graph bellow: 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The chemical symbol for fluorine is f. It is found in cryolite, fluorspar, and fluorapatite. It is a non metal with the symbol f. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. 21/11/2020 · fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. 23 2 and atomtrace database. Fluorine is an element that is widely distributed in the environment, but because of its high reactivity it is not found naturally in its elemental state.