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Niobium
Niobium

Holmium
Holmium



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Niobium
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Holmium

Facts About Niobium and Holmium

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1 Facts
1.1 Interesting Facts
  • Niobium metal was used to get called Columbium in past.
  • Niobium metal found freely in nature (abundance).
  • Holmium metal is very soft and malleable.
  • Holmium metal is well known for its corrosion resistivity.
1.2 Sources
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Charles Hatchett
Marc Delafontaine
1.3.2 Discovery
In 1801
In 1878
1.4 Abundance
1.4.1 Abundance In Universe
2 * 10-7 %5 * 10-8 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0000004 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.00 %0.00 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.00 %0.00 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %0.00 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4