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Mendelevium
(Md)
2818323182
Md
Category
Actinoid
Series
actinide
Relative atomic mass
258.0984
Density
13.51
Melting point (°C)
1342
Boiling point (°C)
3100
Electronegativity (Pauling)
1.28
Half-life
51.5 d
Discovery year
1949
Discovered by
Glenn T. Seaborg
Electrons: 101
Protons: 101
Neutrons: 157

Wikipedia

Wikipedia
Decay chain
  1. Md-258(51.5 d)
    α decay
  2. Es-254(275.7 d)
    α decay
  3. Bk-250(3.22 h)
    β⁻ decay
  4. Cf-250(13.1 y)
    α decay
  5. Cm-246(4730 y)
    α decay
  6. Pu-242(375,000 y)
    α decay
  7. U-238(4.468×10⁹ y)
    α decay
  8. Pb-206(stable)stable
created by @lukaswyss
Mendelevium (Md) – Element 101