Which of the following increasing order of energy of molecular orbitals is correct for O2,F2 and Ne2?
σ1s, σ*1s, σ2s, σ*2s, σ2pz, π2px=π2py, π*2px=π*2py, σ*2pz
σ1s, σ*1s, σ2s, σ*2s, π2px=π2py, σ2pz,π*2px=π*2py, σ*2pz
σ1s, σ*1s, σ2s, σ2pz, σ*2s, π2px=π2py, π*2px=π*2py, σ*2pz
σ1s, σ*1s, σ2s, σ2pz, π2px=π2py, σ*2s, π*2px=π*2py, σ*2pz
For molecules with more than 14 electrons the order isσ1S σ*1S σ 2S σ*2S σ2PZ π2PX=π2PY π*2PX=π*2PY σ*2PZ