Question

Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of:

(1) Helium (2) Neon

(3) Argon (4) Krypton

• A. Helium
• B. Neon
• C. Argon
• D. Krypton

Answer 1

The correct option is B Neon

The electronic configuration of C is $1s^{2}2s^{2}2p^2$,
forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration $1s^{2}2s^{2}2p^6$ which is the electronic configuration of inert gas neon.