Correct order of stability of species
`N_(2),N_(2)^(+),N_(2)^(-)`

Options

A. `2.5, 2.5 and 3` respectively
B. `2,2.5 and 3` respectively
C. `3,2.5 and 3` respectively
D. `2.5,2.5 and 2.5` respectively.

Answer

A

Explanation

`N_(2)^(+) (13) : (sigma1s^(2)) (sigma^(**)1s^(2))(sigma2s^(2))(sigma^(**)2s^(2))(pi 2p_(x)^(2) = pi 2p_(y)^(2))(sigma2p_(z)^(1))`
B.O. ` = 1/2 xx(9-4) = 2.5`
`N_(2)^(-) (15) : (sigma1s^(2))(sigma^(**)1s^(2))(sigma2s^(2))(sigma^(**)2s^(2))(pi2p_(x)^(2) = pi 2p_(y)^(2))(sigma2p_(z))^(2) (pi^(**) 2p_(x)^(1))`
B.O. ` = 1/2 xx (10 - 5) = 2.5`
`N_(2) (14) : (sigma1s^(2))(sigma^(**)1s^(2))(sigma2s^(2))(sigma^(**)2p_(x)^(2)=pi2p_(y)^(2))(sigma2p_(z)^(2))`
B.O. ` = 1/2 xx (10 - 4) = 3.0`