101
Md
Mendelevium
(258)
2818323182
#101
Mendelevium
actinide· Solid·258 u
Mendelevium is a synthetic element with chemical symbol Md (formerly Mv) and atomic number 101. A metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities through neutron bombardment of lighter elements. It is the antepenultimate actinide and the ninth transuranic element.
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Identity
- Symbol
- Md
- Atomic Number
- 101
- Atomic Mass
- 258 u
- Category
- actinide
- Block
- f-block
- Period
- 7
- Group
- 3
- Appearance
- Chemical element with atomic number 101 (Md)
- Year Discovered
- 1955 CE
- Discovered By
- Lawrence Berkeley National Laboratory
- Named By
- Dmitri Mendeleev
Electrons
- Configuration
- [Rn] 5f13 7s2
- Full Configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f13
- Shells
- 2, 8, 18, 32, 31, 8, 2
- Electronegativity
- 1.3
- Electron Affinity
- 93.91
- Oxidation States
- +3, +2
- Ionization Energies
- 635
Physical Properties
- State at
- Solid
- Melting Point
- 1100
- Boiling Point
- n/a
- Density
- n/a
- Crystal Structure
- n/a
- Magnetic Ordering
- n/a
Mechanical
Thermal & Electrical
Abundance
- Universe
- 0
- Sun
- 0
- Meteorite
- 0
- Earth's Crust
- 0
- Ocean
- 0
- Human Body
- 0