SEARCH Articles Figures Tables 18 Electron rule 19 valence electron rule conversion Electron counting rule cluster valence electrons Iron complexes 18 valence electron rule Remarks on the chemical bond factor and valence-electron counting rules Valence electron Valence electron rules fragments Valence electrons 18-electron rule Valence electrons Valency Valence electrons octet rule Valence shell electron pair repulsion rule Valence-electron counting rules, Valence-shell electron-pair repulsion VSEPR) rules