Elements / 96
96Cm[247]
Curium
Actinide · f-block · ring Q
Curium is element 96, an actinide. It is one of the actinides, which the spiral keeps in line on ring Q instead of exiling them to a strip below the table.
Properties
| Density | 13.5 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 1,613 K · 1,340 °C | Terrain → |
| Boiling point | 3,383 K · 3,110 °C | Terrain → |
| Electronegativity | 1.28 | Terrain → |
| First ionization energy | 581 kJ/mol | Terrain → |
| Atomic weight | 247 u | Terrain → |
| Crustal abundance | Not measured | Terrain → |
| Discovered | 1944 | Terrain → |
Values from open reference data; see sources. "Terrain" opens that property as a 3D landscape across the whole spiral.
Two things you might not know
- Its alpha particles probed rocks for the Sojourner rover on Mars and for the Philae comet lander.
- Named after a famous married pair of scientists; first made at Berkeley in 1944 by Seaborg, James and Ghiorso.
Checked against en.wikipedia.org.
Actinides
- Ac Actinium
- Th Thorium
- Pa Protactinium
- U Uranium
- Np Neptunium
- Pu Plutonium
- Am Americium
- Cm Curium
- Bk Berkelium
- Cf Californium
- Es Einsteinium
- Fm Fermium
- Md Mendelevium
- No Nobelium
Ring Q (period 7)
Play with Curium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.