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Thulium
Thulium

Roentgenium
Roentgenium



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Thulium
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Roentgenium

Facts About Thulium and Roentgenium

Facts

Interesting Facts

  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
Roentgenium is a highly unstable synthetic element.

Sources

Found in Minerals, Mining, Ores of Minerals
Synthetically Produced

History

Who Discovered

Per Teodor Cleve
Gesellschaft für Schwerionenforschung

Discovery

In 1879
In 1994

Abundance

Abundance In Universe

0.00 %0.00 %
0 0.11
👆🏻

Abundance In Sun

0.00 %-
0 0.1
👆🏻

Abundance In Meteorites

0.00 %-
0 22
👆🏻

Abundance In Earth's Crust

0.00 %-
1E-37 8.1
👆🏻

Abundance In Oceans

0.00 %-
0 1.1
👆🏻

Abundance In Humans

0.00 %-
0 1.4
👆🏻