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Silver
Silver

Polonium
Polonium



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Facts About Silver and Polonium

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1 Facts
1.1 Interesting Facts
  • It is the most reflective element.
  • Silver is the second most ductile metal after Gold.
  • It is also used in Dentistry as a dental alloys for clips and crowning.
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
1.2 Sources
Earth's crust, Found in Minerals, Ores of metals
Mining, Ores of metals
1.3 History
1.3.1 Who Discovered
Unknown
Pierre Curie and Marie Curie
1.3.2 Discovery
Before 5000 BC
In 1898
1.4 Abundance
1.4.1 Abundance In Universe
6 * 10-8 %NA
Facts About Thallium
5E-09 0.11
1.8.1 Abundance In Sun
~0.0000001 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.11.1 Abundance In Meteorites
0.00 %NA
Facts About Gold
1.7E-07 22
1.15.1 Abundance In Earth's Crust
0.00 %NA
Facts About Radium
9.9E-12 8.1
1.2.1 Abundance In Oceans
0.00 %0.00 %
Facts About Protactinium
2E-23 1.1
1.2.1 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4