light hydrogen
протий
Protium
Synonym of protiumSynonym of protium (“"the usual isotope of hydrogen"”).
Meaning
1 senses(uncountable)Synonym of protium (“"the usual isotope of hydrogen"”).
Origin
So named because it is the isotope of hydrogen with the lightest atomic weight and atomicSo named because it is the isotope of hydrogen with the lightest atomic weight and atomic mass, having one nucleon (a single proton and no neutrons).
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Synonyms
1 synonymsWord family
1 related wordsRelatedlight water
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable