Lawrencium: the essentials
Lawrencium is a synthetic "rare earth metal" which does not occur in the environment.
Lawrencium: historical information
Element 103, lawrencium, was discovered in 1961 by Ghiorso and others in Berkeley, California, USA, who bombarded a californium target with boron ions. They obtained perhaps two micrograms. Several lawrencium isotopes including those with masses 253, 254, 255, 256, 257, 258, 259, and 260 are known now.
Lawrencium around us Read more »
Lawrencium has no biological role.
Lawrencium is a synthetic element that is not present in the geosphere.
|Location||ppb by weight||ppb by atoms||Links|
|Universe||(no data)||(no data)|
|Crustal rocks||(no data)||(no data)|
|Human||(no data) ppb by weight||(no data) atoms relative to C = 1000000|
Physical properties Read more »
- Density of solid: (no data) kg m-3
- Molar volume: (no data) cm3
- Thermal conductivity: 10 (estimate) W m‑1 K‑1
Heat properties Read more »
- Melting point: about 1900 [1627 °C (2961 °F)] K
- Boiling point: (no data) K
- Enthalpy of fusion: (no data) kJ mol-1
Crystal structure Read more »
The solid state structure of lawrencium is: .
Lawrencium: orbital properties Read more »
Lawrencium atoms have 103 electrons and the shell structure is 18.104.22.168.32.9.2. The ground state electronic configuration of neutral Lawrencium is [Rn].5f14.7s2.7p1 (tentative) and the term symbol of Lawrencium is 2P1/2 (tentative).
- Pauling electronegativity: (no data) (Pauling units)
- First ionisation energy: (no data) kJ mol‑1
- Second ionisation energy: (no data) kJ mol‑1
Isolation: coming soon!
Lawrencium isotopes Read more »