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Plutonium
(Pu)
2818322482
Pu
Category
Actinoid
Series
actinide
Relative atomic mass
244.0642
Density
19.84
Melting point (°C)
640
Boiling point (°C)
3223
Electronegativity (Pauling)
1.28
Half-life
8.0×10⁷ y
Discovery year
1940
Discovered by
Glenn T. Seaborg
Electrons: 94
Protons: 94
Neutrons: 150

Wikipedia

Wikipedia
Decay chain
  1. Pu-244(8.0×10⁷ y)
    α decay
  2. U-240(14.1 h)
    β⁻ decay
  3. Np-240(61.9 min)
    β⁻ decay
  4. Pu-240(6561 y)
    α decay
  5. U-236(2.34×10⁷ y)
    α decay
  6. Th-232(1.4×10¹⁰ y)
    α decay
  7. Ra-228(5.75 y)
    β⁻ decay
  8. Ac-228(6.15 h)
    β⁻ decay
  9. Th-228(1.91 y)
    α decay
  10. Ra-224(3.66 d)
    α decay
  11. Rn-220(55.6 s)
    α decay
  12. Po-216(0.145 s)
    α decay
  13. Pb-208(stable)stable
created by @lukaswyss
Plutonium (Pu) – Element 94