| Atomic Number: | 103 |
| Element Symbol: | Lr |
| Element Name: | Lawrencium |
| Atomic Weight: | 262 |
| Group Number: | 3 |
| Group Name: | none |
| Period Number: | 7 |
| Block: | d-block |
| Ground State Configuration: | [Rn] 5f14 7s2 7p ? |
| Ground State Level: | 2Po1/2 ? |
| Standard State: | Artificially prepared |
| Melting Point: | 1627 |
| Most Common Oxidation Numbers: | 3 |
| Color: | Unknown, but probably metallic and silvery white or grey in appearance |
| Classification: | Metallic |
| Discovered By: | Albert Ghiorso, Torbjorn Sikkeland, Almon Larsh, Robert M. Latimer |
| Discovered At: | United States |
| Discovered When: | 1961 |
| Origin Of Name: | Temporary IUPAC nomenclature. The origin of the Amercian Chemical Society preferred name is Ernest O. Lawrence, inventor of the cyclotron |
Calculate the molecular weight of Lawrencium or molecular weight Lr.
Also see the full list of chemical elements and atomic weights.