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
5%
2%
85%
7%
40
flagPakistan
10%
10%
75%
3%
28
flagNorway
9%
13%
72%
4%
22
flagIndia
8%
16%
68%
4%
225
flagMalaysia
17%
17%
64%
0%
17
flagFrance
14%
18%
62%
3%
27
flagItaly
4%
33%
61%
0%
21
flagFinland
15%
25%
60%
0%
20
flagPoland
13%
21%
58%
6%
10828
flagGermany
9%
23%
57%
8%
144
flagthe United Kingdom
13%
21%
54%
9%
421
flagUkraine
9%
32%
51%
6%
31
flagthe Philippines
20%
10%
50%
15%
20
flagGreece
16%
27%
50%
5%
18
flagUnknown
18%
27%
48%
5%
920
flagthe United States
17%
26%
48%
6%
379
flagAustralia
29%
12%
45%
12%
24
flagthe Netherlands
12%
34%
42%
10%
47
flagCanada
25%
30%
40%
5%
40
flagRepublic of Ireland
27%
24%
34%
13%
29

Gender

men54%
women60%
one
16%
11%
two
23%
21%
three
54%
60%
four
5%
5%

Details

Author: Paweł Kołodziejczyk
Illustration: frankieleon
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