×

Actinium
Actinium

Hafnium
Hafnium



ADD
Compare
X
Actinium
X
Hafnium

Facts About Actinium and Hafnium

Add ⊕
1 Facts
1.1 Interesting Facts
Not Available
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
1.2 Sources
Obtained by Treating Radium with Neutrons, Ores of metals
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Friedrich Oskar Giesel
Dirk Coster and George de Hevesy
1.3.2 Discovery
In 1902
In 1922
1.4 Abundance
1.4.1 Abundance In Universe
NA7 * 10-8 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~-9999 %~0.0000001 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
NA0.00 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NA0.00 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NA0.00 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4