Symbol
Mo
Atomic Number
42
Atomic Mass
95.95
Protons
42
Neutrons
53
Electrons
42
Type
Transition Metal
Isotopes
Molybdenum-92, Molybdenum-94, Molybdenum-95, Molybdenum-96, Molybdenum-97, Molybdenum-98, Molybdenum-100
Discovery Year
1778
Discovered By
Carl Wilhelm Scheele
Group
6
Period
5
Boiling Point
10454°F
Melting Point
4641°F
Electron Configuration
[Kr] 5s¹ 4d⁵
Density (g/cm³)
10.22
Crystal Structure
Body-centered cubic
Magnetism
Paramagnetic
Abundance in Earth's Crust
0.0007%
Phase at Room Temperature
Solid