Chemical Bonding and Molecular Structure — Chapter Summary

A chemical bond is the attractive

A chemical bond is the attractive force that holds atoms, ions, or other constituents together in a chemical species. Bond formation lowers the energy

Kössel and Lewis independently explained bond

Kössel and Lewis independently explained bond formation in 1916 in terms of electron transfer or electron sharing. Kössel focused on ionic bonding and

Atoms form bonds to achieve

Atoms form bonds to achieve a stable outer-shell arrangement of eight electrons, except helium which follows a duplet. The rule is useful but not univ

Lewis symbols show valence electrons as

Lewis symbols show valence electrons as dots around the element symbol, and Lewis dot structures show shared pairs and lone pairs in molecules or ions

Formal charge is a bookkeeping tool

Formal charge is a bookkeeping tool used to assign electrons in a Lewis structure. It helps choose the most reasonable structure, usually the one with