Question

Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, eg. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of _______.
(A) helium                               (B) neon
(C) argon                                (D) krypton

Answer 1

(B) neon

Atomic number of carbon = 6
Electronic configuration of carbon = 2, 4
When carbon forms four covalent bonds by sharing its valence electrons with four univalent atoms (eg. Hydrogen), it achievesstable electronic configuration of nearest noble gas, neon (2,8).