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Americium
(Am)
2818322582
Am
Category
Actinoid
Series
actinide
Relative atomic mass
243.06138
Density
13.67
Melting point (°C)
1240
Boiling point (°C)
2880
Electronegativity (Pauling)
1.3
Half-life
7370 y
Discovery year
1944
Discovered by
Glenn T. Seaborg
Electrons: 95
Protons: 95
Neutrons: 148

Wikipedia

Wikipedia
Decay chain
  1. Am-243(7370 y)
    α decay
  2. Np-239(2.36 d)
    β⁻ decay
  3. Pu-239(24,110 y)
    α decay
  4. U-235(7.04×10⁸ y)
    α decay
  5. Th-231(25.5 h)
    β⁻ decay
  6. Pa-231(32,760 y)
    α decay
  7. Ac-227(21.8 y)
    β⁻ decay
  8. Th-227(18.7 d)
    α decay
  9. Ra-223(11.4 d)
    α decay
  10. Rn-219(3.96 s)
    α decay
  11. Po-215(1.78 ms)
    α decay
  12. Pb-207(stable)stable
created by @lukaswyss
Americium (Am) – Element 95