101
258 u
Md
Mendelevium
Actinide
Atomic Structure
Physical State
Group
N/A
Period
7
Block
f
Electron Configuration
[Rn] 5f¹³ 7s²
Physical Properties
Atomic Mass:
258 u
Electronegativity:
1.3
Atomic Radius:
N/A
Ionization Energy:
6.58 eV
Density:
N/A
Melting Point:
1100 K
Boiling Point:
N/A
Historical Information
Discovered By:
Lawrence Berkeley National Laboratory
Year Discovered:
1955