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Dihydrogen vs Helium - What's the difference?

dihydrogen | helium |

As nouns the difference between dihydrogen and helium

is that dihydrogen is (chemistry) the divalent radical formed from two separate hydrogen atoms or ions while helium is helium.

dihydrogen

English

Noun

(-)
  • (chemistry) The divalent radical formed from two separate hydrogen atoms or ions.
  • (chemistry, modifying a noun) Describing a dihydrogen bond.

    • Usage notes

    *Used informally in dihydrogen monoxide, the supposed scientific name for water *Used in mixed salts, such as calcium dihydrogen phosphate

    Derived terms

    *calcium dihydrogen phosphate *dihydrogen arsenate *dihydrogen monoxide *dihydrogen oxide *dihydrogen phosphate

    helium

    English

    (wikipedia helium)

    Noun

  • (uncountable) A colorless and inert gas, and the second lightest chemical element (symbol He) with an atomic number of 2 and atomic weight of 4.002602.
  • (countable) A form or sample of the element.

    • Derived terms

    (terms derived from helium) * heliair * heliox * * * helium burning * helium dating * helium flash * helium fusion * helium speech * helium star * helium variable * liquid helium * orthohelium * parahelium

    Related terms

    * helio- * Helios

    Synonyms

    * when used as a packaging gas ----