How many valence electrons are in NF4?

Answer 1

sulphur has 6 v.e

f has 7 each

so total 34 v.e

sf4 has a trigonbal bipyramidal structure.

it has 1 lone pair of electrons too. "which do not enter into bonding

sf6 is possible too.

actually...

a trgonal byprimidal is a structure with 5 electron groups (Bonding electrons + lone pair electrons). SF4 only has 4 electron groups around it,(all valnce electrons bonded with fluorine and no lone pairs) so it is actually has a tetrahedral geometry. sp^3.

Answer 2

It has 33 valence elctrons

N has 5 because 2 in the s orbital and 3 in the p

F has 7 because 2 are in the s orbital and 5 in the p and there are 4 Fluorine atoms

so 5+7(4) = 33

Answer 3

I think the question needs to be revised. You consider atoms to have valance electrons, i.e. how many electrons in its outermost energy level. Carbon has 4 valence electrons and fluorine has 7 each. However, if you are talking about the molecule C2F4, you have 3x SP2 hybridisation of each carbon, 1 each the carbon carbon bonds (along with the spare P orbital) to create a double bond between carbons, and the remaining 2 sp2s of each bond the fluorines. I.e. in that conformation, there are no more electrons available for bonding

Answer 4

16. 4 pairs are used in bonding, there are 3 lone pairs on each F.

Answer 5

32