lawrencium — Lr
The chemical element lawrencium is an element of type Metal actinides with the symbol Lr. It has an atomic mass of 266 u and an electronic configuration of [Rn] 5f14 7s2 7p1.
Synthétique
Radioactif
Liquide
Gaz
8
18
32
32
8
3
- Atomic number
- 103
- Atomic mass
- 266
- Symbol
- Lr
- Melting point
- 1627
- Boiling point
- 0
- Density
- 15.6
- Period
- 7
- Group
- 0
- Discovery
- 1961 Ghiorso et al.
- Abundance
- 0
- Radius
- 0
- Electronegativity
- 0
- Ionization
- 0
- Isotope
- 203
- Electronic configuration
- [Rn] 5f14 7s2 7p1
- Oxidation state
- 3
- Electron
- 2,8,18,32,32,8,3