How many hydrogen isotopes occur naturally on the Earth?

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Three isotopes of hydrogen occur naturally on the Earth: the most frequent protium (1H), deuterium (2H) and tritium (3H). Other isotopes of hydrogen (4H-7H) were created in laboratories and are highly unstable.
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Paweł Kołodziejczyk
reach: rather globalchemistryelementshydrogenisotopesnamesphysics
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answers
flagthe United Arab Emirates
4%
2%
86%
6%
44
flagPakistan
5%
11%
80%
1%
51
flagSwitzerland
2%
18%
76%
2%
43
flagNorway
7%
17%
71%
3%
28
flagRussia
6%
18%
69%
6%
33
flagIndia
9%
16%
67%
5%
422
flagFrance
11%
20%
64%
2%
34
flagPoland
13%
20%
59%
5%
14839
flagUkraine
9%
29%
57%
3%
77
flagGermany
11%
23%
56%
8%
187
flagAustria
15%
18%
56%
9%
32
flagthe United Kingdom
13%
23%
53%
8%
521
flagAustralia
29%
10%
51%
8%
37
flagthe Netherlands
8%
30%
50%
10%
79
flagthe United States
15%
26%
48%
8%
547
flagUnknown
18%
28%
47%
5%
1164
flagthe Philippines
15%
24%
46%
8%
45
flagCanada
18%
29%
45%
7%
55
flagSweden
7%
44%
39%
7%
38
flagRepublic of Ireland
23%
23%
31%
21%
38