different between toponium vs onium

toponium

English

Etymology

top +? -onium From top quark and "-onium" as in positronium.

Noun

toponium (plural toponiums or toponia)

  1. (physics) Any hypothetical meson formed from a top quark and its antiquark; would be very unstable because of the large mass of the top quark

Translations

See also

  • Quarkonium on Wikipedia.Wikipedia
  • bottomonium
  • quarkonium

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onium

English

Etymology 1

From ammonium.

Noun

onium (plural oniums)

  1. (chemistry) any cation derived by the addition of a proton to the hydride of any element of the nitrogen, chalcogen or halogen families
  2. (chemistry) any organic derivative of these compounds
Translations
See also
  • ammonium
  • arsonium
  • bismuthonium
  • bromonium
  • chloronium
  • fluoronium
  • iodonium
  • oxonium
  • phosphonium
  • selenonium
  • stibonium
  • sulfonium / sulphonium
  • telluronium

Etymology 2

See Muonium#Nomenclature.

Noun

onium (plural onia)

  1. (physics) the bound pair of a particle and its antiparticle
Derived terms
  • -onium
Related terms
  • positronium
  • muononium
  • tauonium
  • toponium
Translations

onium From the web:

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  • what does onium mean
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  • meconium
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