According to the molecular orbital theory,the bond order in $C_2$ molecule is

Explain the linear combination of atomic orbitals $(LCAO)$ with a suitable example.

Stability of the species $Li_2$, $Li_2^-$, and $Li_2^+$ increases in the order of:

The number of electrons present in bonding and antibonding orbitals in $O_2^{2-}$ is respectively

The formation of molecular orbitals can be described by the linear combination of atomic orbitals. Which one of the following correctly represents the formation of bonding molecular orbital from the atomic orbitals having wave functions $\psi_A$ and $\psi_B$?

Use molecular orbital theory to explain why the $Be_{2}$ molecule does not exist.