Lawrencium |
Symbol | Lr |
---|---|
Latin name | Lawrencium |
Atomic number | 103 |
Period | 7 |
Element category | Inner transition elements |
Relative atomic mass | 260.1053 |
Group | III.B |
Oxidation numbers | 3 |
Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d1 7s2 |
State | Solid |
Thermal conductivity [W m-1K-1] | 10 |
Discovery | 1961 |
Stable isotopes | 0 |
Unstable isotopes | 2 |