What is the Atomic Number of the Element with 1s2, 2s2, 2p6, 3s2, 3p3 Electronic Configuration?

Q. What is the Atomic Number of the Element with 1s2, 2s2, 2p6, 3s2, 3p3 Electronic Configuration?

A.            34.

B.            49.

C.            31.

D.            33.

Answer: 33.