What is the most common element (by mass) forming the planet Earth?

carbon
oxygen
iron
silicon
Iron is most abundant in the Earth's outer and inner core, and it is the fourth most common element in the Earth's crust.

Answers distribution

carbon
oxygen
iron
silicon
answers
flagCroatia
0%
0%
92%
7%
13
flagthe United Arab Emirates
19%
9%
71%
0%
21
flagNigeria
8%
33%
58%
0%
12
flagPakistan
21%
10%
57%
7%
28
flagMalaysia
25%
25%
50%
0%
16
flagCanada
28%
10%
47%
13%
46
flagItaly
21%
10%
47%
21%
19
flagIndia
17%
19%
44%
16%
266
flagthe United States
30%
16%
37%
14%
521
flagGermany
17%
17%
37%
26%
79
flagNorway
31%
18%
36%
13%
22
flagthe United Kingdom
31%
17%
34%
15%
216
flagAustralia
35%
13%
33%
17%
45
flagthe Philippines
17%
26%
32%
17%
34
flagPoland
27%
20%
29%
22%
5225
flagthe Netherlands
40%
18%
27%
13%
22
flagRepublic of Ireland
39%
26%
26%
8%
23
flagIndonesia
11%
58%
23%
5%
17
flagFrance
55%
16%
22%
5%
18
flagUnknown
18%
28%
20%
31%
77

Gender

men31%
women26%
carbon
27%
29%
oxygen
18%
19%
iron
31%
26%
silicon
23%
24%

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answers
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What is the most common element (by mass) forming the planet Earth?
1361
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