What is the rarest metal in the Earth's crust?

Gold
Rhenium
Platinum
Zirconium
Rhenium is a chemical element with symbol Re It is a sil­very-white, heavy, third-row tran­si­tion metal in group 7 of the periodic table. With an es­ti­mat­ed average con­cen­tra­tion of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust. Dis­cov­ered in 1908, rhenium was the sec­ond-last stable element to be dis­cov­ered. It was named after the river Rhine in Europe.

Answers distribution

Gold
Rhenium
Platinum
Zirconium
answers
flagIndia
0%
53%
23%
23%
13
flagGermany
17%
47%
29%
5%
17
flagthe United States
12%
46%
31%
9%
41
flagPoland
8%
42%
28%
20%
2997
flagUnknown
7%
40%
27%
24%
480
flagthe United Kingdom
8%
37%
29%
24%
37

Gender

men40%
women43%
Gold
6%
7%
Rhenium
40%
43%
Platinum
31%
28%
Zirconium
20%
20%

Language versions

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What is the rarest metal in the Earth's crust?
81
38%

Details

Author: Tschuka
Illustration: Peter Dowley

History

Dec. 24, 2017, 10:50 a.m. added by Cypis »
July 6, 2017, 6:22 p.m. modified by Piotr Janek »
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