(电子排布式) Review Electron Configuration in Molecular Orbitals and Bond Order(睫领) ☐1s H atom Hatom H atom H atom He atom He atom He atom He atom HMolecule H:molecule He:Molecule He,Molecule Electron configuration O\s RG2ua 51s 1s 1s H克 H2 He He2 bond order: 归 1 h 0Review : Electron Configuration Review : Electron Configuration in Molecular Orbitals and Bond Order Bond Order (键级) 2 *2 σ σ 1 σ1s 2 σ1s 2 *1 σ σ Electron configuration (电子排布式) bond order: ½ 1 0 ½ 2 * 1s 2 σ σ 1s σ1s σ1s 2 * 1s 1 σ σ1s configuration