In which of the following molecules,sigma 2p_(z) molecular orbital is filled after pi 2p_(x) and pi 2p_(y) molecular orbitals ?

In which of the following molecules,sigma 2p_(z) molecular orbital is

1.	In which of the following molecules,sigma 2p_(z) molecular orbital is filled after pi 2p_(x) and pi 2p_(y) molecular orbitals ?
Answer» `O_(2) ` `Ne_(2)` `N_(2)` `F_(2)` SOLUTION :In `N_(2) , sigma _(2_(p_(z))) ` is FILLED after `pi_(2_(p_(x)) and pi_(2_(p_(y)))` .