Question

The atomic weight of an element is double its atomic number. If there are four electrons in $2p$ orbital, the element is

• A. $C$
• B. $N$
• C. $O$
• D. $Ca$

Answer 1

Answer: (C)

$O$

Answer 2

$8O = 1s^{2}2s^{2}2p^{4}$