Cm
Curium Symbol (Cm)
Curium is element 96 of the periodic table. Copy its symbol Cm and see its atomic weight, electron configuration and physical properties.
What does Cm mean?
Cm is the chemical symbol for curium, element number 96 in the periodic table. Curium is an actinide in the f-block, period 7. It is a solid at room temperature and was discovered in 1944.
Codes and properties
| Chemical symbol | Cm |
|---|---|
| Atomic number (Z) | 96 |
| Mass number (no standard atomic weight) | [247] |
| Group / period | f-block / 7 |
| Element category | actinide |
| Electron configuration | [Rn]7s² 5f⁷ 6d¹ |
| State at 20 °C | Solid |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.3 |
| Melting point | 1618 K (1344.85 °C) |
| Boiling point | 3400 K (3126.85 °C) |
| Density | 13.51 g/cm³ |
| Discovered | 1944 |
How to type Cm
- Plain text: type
Cm— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as H₂O — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Cm}in math mode, or use the mhchem package:\ce{Cm}. - HTML:
Cm; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for curium?
The chemical symbol for curium is Cm.
What is the atomic number of curium?
Curium has atomic number 96, meaning each atom has 96 protons.
What is the electron configuration of curium?
The ground-state electron configuration of curium is [Rn]7s² 5f⁷ 6d¹.
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Reference: Curium on PubChem (NIH)