normal 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 usual isotope of hydrogen, having one nucleon (a single protonSo named because it is the usual isotope of hydrogen, having one nucleon (a single proton and no neutrons).
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Synonyms
1 synonymsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable