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%
85%
7%
42
flagPakistan
8%
8%
80%
2%
36
flagNorway
8%
12%
76%
4%
25
flagIndia
9%
17%
68%
4%
250
flagFrance
13%
20%
62%
3%
29
flagMalaysia
14%
23%
61%
0%
21
flagSweden
15%
15%
60%
10%
20
flagFinland
15%
25%
60%
0%
20
flagPoland
13%
21%
58%
5%
12011
flagGermany
9%
22%
57%
9%
153
flagthe United Kingdom
13%
21%
54%
9%
451
flagItaly
8%
37%
54%
0%
24
flagthe United States
17%
26%
48%
7%
399
flagUkraine
12%
33%
48%
6%
33
flagUnknown
18%
28%
47%
5%
1021
flagthe Netherlands
10%
32%
47%
10%
59
flagthe Philippines
19%
15%
46%
15%
26
flagAustralia
31%
13%
44%
10%
29
flagCanada
23%
27%
39%
9%
43
flagRepublic of Ireland
24%
21%
33%
21%
33

Gender

men54%
women60%
one
16%
12%
two
23%
21%
three
54%
60%
four
5%
5%

Details

Author: Paweł Kołodziejczyk
Illustration: frankieleon
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