The electronic configuration `1s^(2) 2s^(2) 2p^(5) 3s^(1)` shows

Options

A. ground state of fluorine atom
B. excited state of fluorine atom
C. excited state of neon atom
D. excited state of ion `O_(2)^(-)`

Answer

C

Explanation

The ground state electronic configuration of neon atom (Z=10) is :
`1s^(2), 2s^(2), 2p^(6)`
Therefore first excited state of Neon will be :
`1s^(2), 2s^(2), 2p^(5) , 3s^(1)`