As nouns the difference between helium and trioxide
is that helium is 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 while trioxide is any oxide containing three oxygen atoms in each molecule.
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
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trioxide
English
Noun
(
en noun)
(chemistry) any oxide containing three oxygen atoms in each molecule
(chemistry) any organic compound of general formula R-OOO-R', derived from trioxidane
Derived terms
*antimony trioxide
*arsenic trioxide
*berkelium trioxide
*bismuth trioxide
*boron trioxide
*chromium trioxide
*curium trioxide
*dinitrogen trioxide
*hydrotrioxide
*molybdenum trioxide
*sulfur trioxide, sulphur trioxide
*tungsten trioxide
*uranium trioxide
*xenon trioxide
