Question

What is the electronic configuration of neon [Atomic number=10, Atomic mass=20]?

• A. $2,6$
• B. $2,7$
• C. $2,5$
• D. $2,8$

Answer 1

Answer: (D)

$2,8$

Atomic number of neon is $10$. K shell can accommodate $2$ electrons and L shell can accommodate the remaining $8$ electrons.Hence the electronic configuration is $2,8.$