Question

There are four elements P, Q, R and S having atomic numbers of 4, 18, 10 and 16 respectively. The element which can exhibit covalency as well as electrovalency will be :

विकल्प

• P

• Q

• R

• S

Answer 1

 S
Element S has electronic configuration 2, 8, 6. It can exhibit covalency as well as electrovalency.