97Bk247
Berkelium
Actinide · element 97 · f-block (shown below the main table)
Quick facts
| Symbol | Bk |
|---|---|
| Atomic number | 97 |
| Relative atomic mass | 247 |
| Category | Actinide |
| Position | f-block (shown below the main table) |
| State at 20 °C | Solid |
| Melting point | 986 °C |
| Boiling point | — |
| Density | 14.78 g/cm³ |
| Electronegativity | 1.3 |
| Electron configuration | [Rn] 5f9 7s2 |
About Berkelium
Berkelium has the symbol Bk and atomic number 97, which means every berkelium atom has 97 protons in its nucleus and, in a neutral atom, 97 electrons. At room temperature it is a solid.
Actinides are the second row of the f-block. They are all radioactive, and only a few (like uranium and thorium) occur naturally in large amounts.
It melts at 986 °C.
Explore it
See where berkelium sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.