96Cm247
Curium
Actinide · element 96 · f-block (shown below the main table)
Quick facts
| Symbol | Cm |
|---|---|
| Atomic number | 96 |
| Relative atomic mass | 247 |
| Category | Actinide |
| Position | f-block (shown below the main table) |
| State at 20 °C | Solid |
| Melting point | 1,340 °C |
| Boiling point | 3,110 °C |
| Density | 13.51 g/cm³ |
| Electronegativity | 1.28 |
| Electron configuration | [Rn] 5f7 6d1 7s2 |
About Curium
Curium has the symbol Cm and atomic number 96, which means every curium atom has 96 protons in its nucleus and, in a neutral atom, 96 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 1,340 °C and boils at 3,110 °C.
Explore it
See where curium sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.