103
Lr
Lawrencium
(266)
2818323283
#103
Lawrencium
actinide· Solid·266 u
Lawrencium is a synthetic chemical element with chemical symbol Lr (formerly Lw) and atomic number 103. It is named in honor of Ernest Lawrence, inventor of the cyclotron, a device that was used to discover many artificial radioactive elements. A radioactive metal, lawrencium is the eleventh transuranic element and is also the final member of the actinide series.
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Identity
- Symbol
- Lr
- Atomic Number
- 103
- Atomic Mass
- 266 u
- Category
- actinide
- Block
- f-block
- Period
- 7
- Group
- 3
- Appearance
- Chemical element with atomic number 103 (Lr)
- Year Discovered
- 1961 CE
- Discovered By
- Lawrence Berkeley National Laboratory
- Named By
- Ernest Lawrence
Electrons
- Configuration
- [Rn] 5f14 7s2 7p1
- Full Configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 7p1
- Shells
- 2, 8, 18, 32, 32, 8, 3
- Electronegativity
- 1.3
- Electron Affinity
- -30.04
- Oxidation States
- +3
- Ionization Energies
- 470
Physical Properties
- State at
- Solid
- Melting Point
- 1900
- 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