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
7%
10%
79%
2%
39
flagNorway
7%
15%
73%
3%
26
flagSwitzerland
2%
22%
71%
2%
35
flagIndia
9%
16%
69%
4%
291
flagMalaysia
12%
24%
64%
0%
25
flagFrance
13%
20%
62%
3%
29
flagPoland
13%
20%
59%
5%
12871
flagGermany
10%
23%
56%
8%
163
flagthe United Kingdom
13%
22%
54%
8%
466
flagItaly
8%
37%
54%
0%
24
flagUkraine
11%
30%
52%
5%
36
flagthe Netherlands
9%
30%
51%
9%
66
flagthe United States
17%
26%
48%
7%
426
flagAustralia
29%
12%
48%
9%
31
flagUnknown
18%
28%
47%
5%
1061
flagSweden
9%
38%
45%
6%
31
flagCanada
21%
26%
43%
8%
46
flagthe Philippines
15%
25%
40%
12%
32
flagRepublic of Ireland
25%
20%
31%
22%
35

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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