107Bh270
Bohrium
Transition metal · element 107 · group 7, period 7
Quick facts
| Symbol | Bh |
|---|---|
| Atomic number | 107 |
| Relative atomic mass | 270 |
| Category | Transition metal |
| Position | group 7, period 7 |
| State at 20 °C | Unknown (too few atoms have been made) |
| Melting point | — |
| Boiling point | — |
| Density | — |
| Electronegativity | — |
| Electron configuration | [Rn] 5f14 6d5 7s2 |
About Bohrium
Bohrium has the symbol Bh and atomic number 107, which means every bohrium atom has 107 protons in its nucleus and, in a neutral atom, 107 electrons. At room temperature it is unknown (too few atoms have been made).
Transition metals sit in the middle block of the periodic table. They are usually hard, dense and strong, often form coloured compounds, can have more than one ion charge, and many are useful catalysts.
Explore it
See where bohrium sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.