triatomic

Having three atoms

Triatomic describes a molecule consisting of three atoms.

Ozone is triatomic oxygen—three oxygen atoms bonded together rather than the two in ordinary oxygen.

Water is also triatomic, combining two hydrogen atoms with one oxygen.

The term appears mainly in chemistry contexts: triatomic gases, triatomic molecules.

molecule

bonding

Forming close connections

molecular · compound · polar · nonpolar · gas · vapor · infrared · absorption · symmetry · vibration

water

H2O

Water's molecular notation

  • hydrogenSimplest atomic element
  • oxygenElement eight, colorless gas
  • bentCurved; also dishonest

polar · dipole · angular · steam · vapor · ice · hydration · solvent · electrolysis · hydroxide

structure

linear

Arranged in straight succession

angular · V-shaped · electron pair · hybridization

ozone

stratosphere

Second atmospheric layer up

  • oxygenElement eight, colorless gas
  • ultravioletWavelengths shorter than violet
  • UVInvisible solar radiation

ozone layer · ozone hole · CFCs · atmosphere · photolysis · radiation · tropospheric · oxidant · smog · disinfection

Opposites
number of atoms in a molecule

triatomicmonatomic

Single-atom composition

diatomic · polyatomic

Family

atom, atomic, diatomic, polyatomic, monatomic

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