How many hydrogen isotopes occur naturally on the Earth?

one
two
three
four
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.

Answers distribution

one
two
three
four
answers
flagthe United Arab Emirates
4%
2%
86%
6%
43
flagPakistan
6%
10%
80%
2%
46
flagSwitzerland
2%
20%
74%
2%
39
flagNorway
7%
17%
71%
3%
28
flagIndia
9%
16%
68%
4%
350
flagFrance
12%
18%
66%
3%
33
flagMalaysia
12%
24%
64%
0%
25
flagPoland
13%
20%
59%
5%
13857
flagUkraine
11%
23%
59%
5%
52
flagGermany
11%
24%
55%
7%
176
flagthe United Kingdom
13%
22%
54%
8%
494
flagAustria
16%
20%
53%
10%
30
flagthe Netherlands
9%
28%
52%
9%
73
flagAustralia
28%
11%
51%
8%
35
flagthe United States
15%
26%
48%
9%
506
flagUnknown
18%
28%
47%
5%
1112
flagthe Philippines
13%
24%
45%
10%
37
flagCanada
20%
28%
42%
8%
49
flagSweden
8%
41%
41%
8%
36
flagRepublic of Ireland
24%
21%
32%
21%
37

Gender

men54%
women61%
one
16%
11%
two
23%
21%
three
54%
61%
four
5%
5%

Details

Author: Paweł Kołodziejczyk
Illustration: frankieleon
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