Question

Which element has an electronic configuration of 2, 8, 8 ?

• A. He
• B. Ne
• C. Ar
• D. Kr

Answer 1

The correct option is C Ar

Elements in group VIII A (He, Ne, Ar, Kr, Xe and Rn) are called noble gases or rare gases.
Electronic configuration of $Ar:1s^{2}2s^{2}2p^{6}3s^{2}3p^6$

Hence, the correct option is (C).