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Atomic mass, symbol and atomic number
Berkelium is an artificially created element with the element symbol Bk and atomic number 97. In the periodic table it belongs to the actinoids with an atomic mass of 247 u. The chemical element discovered by Glenn T. Seaborg in 1949 is radioactive and is in a solid state of aggregation at room temperature.
Wanted poster: Berkelium (English Berkelium)
| General | |
|---|---|
| Chemical element: | Berkelium |
| Symbol: | Bk |
| Atomic number: | 97 |
| Group: | actinides |
| Period: | 7 |
| Block: | f-block |
| Series: | actinides |
| Appearance: | silver |
| explorers: | Glenn T. Seaborg |
| Year of discovery: | 1949 |
| Atomic properties | |
| Atomic mass: | 247 u |
| Atomic radius: | 170 pm |
| Covalent radius: | unknown |
| Van der Waals radius: | unknown |
| Electron configuration: | Rn 5f8 6d1 7s2 |
| ionization: | 601 kJ / mol |
| Physical Properties | |
| Physical state: | firmly |
| Density: | 14.78 g / cm3 |
| Crystal structure: | hexagonal |
| Magnetism: | paramagnetic |
| molar volume: | 16,84 ·10-6 m3/ mol |
| Mohs hardness: | unknown |
| Melting point: | 986 ° C |
| Boiling point: | unknown |
| Heat of fusion: | unknown |
| Heat of vaporization: | unknown |
| Thermal conductivity: | unknown |
| Chemical properties | |
| electronegativity: | 1,30 |
Did you know that ...
- Although Berkelium is in the group of actinoids, but also belongs to the metals?
- the shortest or most durable isotope of berkelium has a half life of 7 min or 1400 years?
- the element Berkelium was named after the place of the first proof? (Berkeley, California)
