C2 - Atoms, molecules, etc. (Gen. Chem 1)

atomic mass unit (amu)

1 amu = 1.66 × 10^-24 g (1/12 of a C-12 atom)

• = g/mol

isotope notation

atomic weight

avg. atomic weight, based on isotope abundance

cation nomenclature

• [name] + ion

• X^[charge], X(charge)

• [prefix] - ium + ion

anion nomenclature

• -ide + ion

• oxyanions

  • -ate (common)

  • -ite (1 less O)

  • per- (1 more O than -ate)

  • hypo- (1 less O than -ite)

• hydrogen + [name] + ion

ionic compound nomenclature

[cation] + [anion]

molecular compound nomenclature

• [leftmost, bottommost] + [next] -ide

• # prefix

acid nomenclature

• -ate to -ic

• -ite to -ous

• -ide → -ic (hydro-)

• retain prefixes