Key Concepts:
–Stable, unstable, bond,
chemical bond, molecule, diatomic molecule, molecular element,
–energetic stability,
incomplete valence (or outer) shell, complete valence shell,
–covalent bond,
electron pair, shared electrons, single bond, double bond, triple
bond, ion, molecular ion (polyatomic ion), dot and cross diagram, structural
formula
Skills:
–Describe the formation
of covalent bond
–Define a covalent
bond
–Describe and draw dot
and cross diagrams for diatomic molecular elements