The bond order in $O_2^+$ is

Give the electron configuration,bond order,magnetic property,and energy diagram for the Lithium $(Li_{2})$ molecule.

How many molecular orbitals filled with one or more electrons are present in $N_2^+$?

Paramagnetism is exhibited by molecules:

Number of molecules/species from the following having one unpaired electron: $O_2, O_2^{-}, NO, CN^{-}, O_2^{2-}$

Select the correct set of statements regarding the molecular orbital theory of $O_2$:
$A$. Addition of an electron to $O_2$ decreases bond order.
$B$. Addition of an electron to $O_2$ increases bond order.
$C$. Removal of an electron from $O_2$ increases bond length.
$D$. Removal of an electron from $O_2$ decreases bond length.