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%
82%
8%
34
flagPakistan
12%
8%
75%
4%
24
flagNorway
9%
14%
71%
4%
21
flagIndia
7%
15%
70%
4%
205
flagMalaysia
18%
12%
68%
0%
16
flagItaly
5%
29%
64%
0%
17
flagGermany
9%
23%
61%
4%
117
flagPoland
12%
20%
60%
6%
7239
flagSingapore
13%
20%
60%
6%
15
flagUnknown
14%
22%
59%
2%
98
flagFrance
16%
20%
58%
4%
24
flagFinland
16%
27%
55%
0%
18
flagthe United Kingdom
11%
21%
54%
11%
347
flagAustralia
27%
13%
50%
9%
22
flagthe United States
16%
27%
49%
6%
366
flagthe Philippines
21%
10%
47%
15%
19
flagUkraine
8%
41%
45%
4%
24
flagCanada
27%
30%
36%
5%
36
flagthe Netherlands
10%
43%
35%
10%
37
flagRepublic of Ireland
25%
25%
33%
14%
27

Gender

men58%
women58%
one
15%
12%
two
20%
21%
three
58%
59%
four
6%
6%

Details

Author: Paweł Kołodziejczyk
Illustration: frankieleon
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