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Francium
Francium

Technetium
Technetium



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Francium
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Technetium

Facts About Francium and Technetium

1 Facts
1.1 Interesting Facts
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
1.2 Sources
Formed by Decay Process, Mining
Made by Bombarding Molybdenum with Deuterons
1.3 History
1.3.1 Who Discovered
Marguerite Perey
Emilio Segrè and Carlo Perriero
1.3.2 Discovery
In 1939
In 1937
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NANA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4