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
Estonia
16
Italy
41
Ghana
17
India
238
Pakistan
27
Belarus
16
the Netherlands
20
the Philippines
19
Nigeria
49
Poland
4479
Russia
52
Australia
42
the United Kingdom
71
Austria
32
Republic of Ireland
16
Germany
163
the United States
153
Greece
19
Ukraine
27
Spain
18