Homonuclear molecule


Homonuclear molecule

Homonuclear molecules, or homonuclear species, are molecules composed of only one type of element. Homonuclear molecules may consist of various numbers of atoms, depending on the element's properties. Some elements form molecules of more than one size. Noble gases rarely form bonds, so they only have one atom. The most familiar homonuclear molecules are diatomic, meaning they consist of two atoms, though not all diatomic molecules are homonuclear. Homonuclear diatomic molecules include hydrogen (H2), oxygen (O2), nitrogen (N2) and all of the halogens. Oxygen, in addition to its diatomic form, also forms the homonuclear triatomic molecule, ozone (O3). Homonuclear tetratomic molecules include arsenic (As4) and phosphorus (P4). Sulfur forms diatomic, hexatomic and octatomic homonuclear molecules (S2, S6, S8), though the first two are rare.


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • homonuclear molecule — vienodų atomų molekulė statusas T sritis fizika atitikmenys: angl. homoatomic molecule; homonuclear molecule vok. homoatomisches Molekül, n; homonukleares Molekül, n rus. гомоатомная молекула, f pranc. molécule homonucléaire, f …   Fizikos terminų žodynas

  • molécule homonucléaire — vienodų atomų molekulė statusas T sritis fizika atitikmenys: angl. homoatomic molecule; homonuclear molecule vok. homoatomisches Molekül, n; homonukleares Molekül, n rus. гомоатомная молекула, f pranc. molécule homonucléaire, f …   Fizikos terminų žodynas

  • molecule — /mol euh kyoohl /, n. 1. Chem., Physics. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2. Chem. a quantity of a substance, the weight of… …   Universalium

  • homonuclear — pronunc at homo + adjective Etymology: hom + nuclear 1. : of or relating to the same ring in a chemical compound homonuclear substitution in naphthalene 2. : of or relating to a molecule composed of like nuclei (as hydrogen H2 or nitrogen N2) …   Useful english dictionary

  • homonuclear — adjective Date: 1930 of or relating to a molecule composed of identical nuclei …   New Collegiate Dictionary

  • homoatomic molecule — vienodų atomų molekulė statusas T sritis fizika atitikmenys: angl. homoatomic molecule; homonuclear molecule vok. homoatomisches Molekül, n; homonukleares Molekül, n rus. гомоатомная молекула, f pranc. molécule homonucléaire, f …   Fizikos terminų žodynas

  • Diatomic molecule — A periodic table showing the elements that form diatomic molecules …   Wikipedia

  • chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

  • Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …   Wikipedia

  • Carbon dioxide laser — The carbon dioxide laser (CO2 laser) was one of the earliest gas lasers to be developed (invented by Kumar Patel of Bell Labs in 1964 [cite journal last = Patel first = C. K. N. authorlink = C. Kumar N. Patel year = 1964 title = Continuous Wave… …   Wikipedia