Which of the following is not a hydrogen isotope?
tritium
protium
iridium
deuterium
Protium, deuterium and tritium are hydrogen isotope varieties. Iridium is a chemical element.
reach: rather globalchemistryelementshydrogenisotopes
Answers by country
tritium
protium
iridium
deuterium
answers
Estonia18
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India239
Pakistan27
Belarus18
the Netherlands21
the Philippines19
Nigeria49
Poland4541
Russia56
the United Kingdom79
Australia42
Germany193
the United States172
Austria34
Republic of Ireland16
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Ukraine27
Spain19