Valence Bond Theory, Atom Periodicity.?

Question

I need some help (in simple terms) with these problems,

How do I describe the bonding in the mixed halogen FCI?

and

Identify the number of valence electrons?

and

Identify the group number of an element?

and finally,

Identify hybridisation?

any help is appreciated!

Answer 1

FCL is a covalent compound

F and Cl have 7 electrons on outer shell. To be stable that should have 8.

So they share a pair of electrons giving a single bound Each atom either f Or Cl having 8 elctrons on the valence shell

F and Cl  are group 7a called halogen strongest electronegative elements