103
Lr
Lawrencium
(262) | 2
8
18
32
32
9
2
|
103
Lr
Lawrencium
(262) | 2
8
18
32
32
9
2
|
| General |
|---|
| Name | Lawrencium | | Symbol | Lr | | Number | 103 | | Chemical series | Actinides | | Group / Period | 0 / 7 | | Block | d-block | | CAS registry number | 22537-19-5 |
| Physical properties |
|---|
| State | solid | | Density | g/cm3 | | Melting point | 1900 K (1627°C, 2961°F) | | Boiling point | | | Critical point | |
| Atomic properties |
|---|
| Atomic Weight | (262) g/mol | | Crystal structure | | | Electronegativity | 1.291 | | Atomic radius | | | Atomic radius (calculated) | | | Electron configuration | [Rn] 5f14 6d1 7s2 | | Electrons per shell | 2, 8, 18, 32, 32, 9, 2 | | Number of protons | 103 | | Number of neutrons | 159 |
|
Rutherfordium