Symbol
Md
Atomic Number
101
Atomic Mass
258
Protons
101
Neutrons
157
Electrons
101
Type
Actinide
Isotopes
Mendelevium-258
Discovery Year
1955
Discovered By
Albert Ghiorso, Glenn T. Seaborg, and others
Group
3
Period
7
Boiling Point
Unknown
Melting Point
1100°C
Electron Configuration
[Rn] 7s² 5f¹¹
Density (g/cm³)
10.28
Crystal Structure
Cubic
Magnetism
Paramagnetic
Abundance in Earth's Crust
Trace
Phase at Room Temperature
Solid