Atomic NumberAtomic Number of Lawrencium
Atomic Number of Lawrencium is 103.
Chemical symbol for Lawrencium is Lr. Number of protons in Lawrencium is 103. Atomic weight of Lawrencium is 266 u or g/mol. Melting point of Lawrencium is unknown and its the boiling point is unknown.
» Boiling Point » Melting Point » State at STP » Discovery YearAbout Lawrencium
The last one of the actinides, lawrencium is a radioactive metal which was discovered in the middle of the 1960s by a group of chemists of California, as well as by a group of Russian scientists from Moscow. This chemical element has got its name after Ernest Lawrence, an American inventor and nuclear scientist. So far, there are only a few atoms of this element have been created and were used only for scientific purposes. It is possible to obtain lawrencium from californium, in terms of a lab or a nuclear reactor. This chemical element is very dangerous for all living organisms on our planet.
Properties of Lawrencium Element
| Atomic Number (Z) | 103 |
|---|---|
| Atomic Symbol | Lr |
| Group | |
| Period | 7 |
| Atomic Weight | 266 u |
| Density | 15.6 g/cm3 |
| Melting Point (K) | 1900 K |
| Melting Point (℃) | unknown |
| Boiling Point (K) | unknown |
| Boiling Point (℃) | unknown |
| Heat Capacity | |
| Abundance | 0 mg/kg |
| State at STP | Solid(presumed) |
| Occurrence | Synthetic |
| Description | Actinide |
| Electronegativity (Pauling) χ | 1.3 |
| Ionization Energy (eV) | 4.9 |
| Atomic Radius | |
| Covalent Radius | |
| Valence Electrons | 3 |
| Year of Discovery | 1961 |
| Discoverer | Ghiorso |