Heteronuclear diatomic molecules No (ground state): s 2s KK(2)3(2)2(a2p)2(2)2(m2p) Is Is NOHeteronuclear Diatomic Molecules 9 NO (ground state): KK (σ2s)2(σ2s *)2 (σ 2p)2 (π2p)4 (π2p *)1 N NO O