A neutral fluorine atom has actually seven valence electrons. You can determine the number of valence electron for any type of element the the main group of facets by utilizing their group numbers. The key group consists of all of the facets EXCEPT the transition and inner transition elements. The variety of valence electrons for the key group elements can be figured out by their group numbers as 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 electron (of i beg your pardon fluorine is a member)

Group 18/VIIIA: 8 valence electron (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 room those electron 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 nucleus of an atom.

In every steady (Neutral) atom the number of electrons room equal come the number of protons.

Therefore, the variety of electrons in one atom the fluorine space 9.

The electronic configuration that fluorine is:

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

The last shell of fluorine has 7 electrons. As such there room 7 valence electrons in one atom that fluorine.

Stefan V.
Sep 9, 2015

Fluorine has #7# valence electrons.

Explanation:

Fluorine is situated in group 17, period 2 the the periodic table, and has an atom number equal to 9.

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

Bu how plenty of of those 9 electrons space valence electrons?

You recognize that valence electron are situated in the outermost shell of one atom. You can use fluorine"s electron construction to help you determine how countless electrons are located in the outermost shell

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

The an initial energy level has actually 2 electrons located in the 1s-orbital and also the second energy level, i beg your pardon in fluorine"s instance is the outermost power level, has actually 7 electrons, 2 in the 2s-orbital and also 5 in the 2p-orbitals.

This method that fluorine has a full of 7 valence electrons.