A neutral fluorine atom has actually seven valence electrons. You deserve to determine the number of valence electrons for any kind of element of the main team of facets by using their team numbers. The main group is composed of all of the aspects EXCEPT the shift and inner transition elements. The variety of valence electrons for the main group facets can be figured out by their group numbers together follows:

Group 1/IA: 1 valence electron

Group 2/IIA: 2 valence electrons

Group 13/IIIA: 3 valence electrons

Group 14/IVA: 4 valence electrons

Group 15/VA: 5 valence electrons

Group 16/VIA: 6 valence electrons

Group 17/VIIA: 7 valence electrons (of which fluorine is a member)

Group 18/VIIIA: 8 valence electrons (except helium, which has actually 2 valence electrons)

Shivangi Mangotra · Christopher P.
Oct 28, 2014

Fluorine has 7 Valence electrons.

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Valence electrons are those electrons which are existing in the outermost covering of one atom.

Fluorine has actually atomic number 9. Atomic number is the number of protons current in the cell nucleus of one atom.

In every stable (Neutral) atom the number of electrons space equal come the variety of protons.

Therefore, the variety of electrons in an atom the fluorine are 9.

The electronic configuration the fluorine is:

E.C:- k - 2 , L-7

The last covering of fluorine has actually 7 electrons. Thus there are 7 valence electron in an atom of fluorine.

Stefan V.
Sep 9, 2015

Fluorine has #7# valence electrons.

Explanation:

Fluorine is located in group 17, duration 2 of the periodic table, and also has an atomic number equal to 9.

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This means that a neutral fluorine atom has a full of 9 electrons bordering its nucleus.

Bu how numerous of those 9 electrons space valence electrons?

You understand that valence electron are situated in the outermost shell of one atom. You deserve to use fluorine"s electron construction to assist you identify how numerous electrons are situated in the outermost shell

#"F": 1s^2 2s^2 2p^5#

The first energy level has 2 electrons situated in the 1s-orbital and also the 2nd energy level, i m sorry in fluorine"s instance is the outermost power level, has 7 electrons, 2 in the 2s-orbital and also 5 in the 2p-orbitals.

This means that fluorine has a complete of 7 valence electrons.