Question

Which of the following elements can show covalency greater than 4 among s,be,b,p?

Answer 1

Answer:

Sulphur and Phosphorus can show covalency greater than 4.

Answer 2

The correct option is D. p

Valence=Valence electron responsible for an element to show maximum covalency.

The Covalency is defined as the total number of electron pairs that an atom can share with other atoms.

And formed bond called covalent bond and bond formed between two atom by equal sharing of electron.

Here, be2,2

(having only 2 valence electron so it does not show covalency greater than 4)

Likewise,Li2,1

P=2,8,5

B=2,3

In case of boron maximum covalency is 4 because only four orbitals ( one s-orbital and three p-orbitals) are available for bonding.

so only 'P' show its covalency greater than 4

So,option 'p' will be correct