Which of the following does not exist on the basis of molecular orbital theory

  • A

    $H_2^ + $

  • B

    $He_2^ + $

  • C

    $H{e_2}$

  • D

    $L{i_2}$

Similar Questions

Give answer of following questions.

$(i)$ Give molecular orbitals and type form by $\mathrm{LCAO}$ from $2{\rm{s}},2{{\rm{p}}_{\rm{x}}},2{{\rm{p}}_{\rm{y}}}$ and $2{{\rm{p}}_{\rm{z}}}$ 

$(ii)$ ${\rm{L}}{{\rm{i}}_2},{\rm{B}}{{\rm{e}}_2},{{\rm{C}}_2},{{\rm{N}}_2},{{\rm{O}}_2}{\rm{,}}{{\rm{F}}_2}$ for these molecule give energy other.

Which one of the following species does not exist under normal conditions ?

  • [AIPMT 2010]

The total number of electron that takes part in forming bonds in ${N_2}$ is

Which is set of paramagnetic molecules or ions

The bond length the species ${O_2},O_2^ + $ and $O_2^ - $ are in the order of