Pu
Plutonium Symbol (Pu)
Plutonium is element 94 of the periodic table. Copy its symbol Pu and see its atomic weight, electron configuration and common compounds.
What does Pu mean?
Pu is the chemical symbol for plutonium, element number 94 in the periodic table. Plutonium is an actinide in the f-block, period 7. It is a radioactive metal used in nuclear weapons and in radioisotope power sources for spacecraft.
Codes and properties
| Chemical symbol | Pu |
|---|---|
| Atomic number (Z) | 94 |
| Mass number (no standard atomic weight) | [244] |
| Group / period | f-block / 7 |
| Element category | actinide |
| Electron configuration | [Rn]7s² 5f⁶ |
| State at 20 °C | Solid |
| Oxidation states | +6, +5, +4, +3 |
| Electronegativity (Pauling) | 1.28 |
| Melting point | 913 K (639.85 °C) |
| Boiling point | 3501 K (3227.85 °C) |
| Density | 19.84 g/cm³ |
| Discovered | 1940 |
| Common compounds | PuO₂ |
How to type Pu
- Plain text: type
Pu— 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 PuO₂ — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Pu}in math mode, or use the mhchem package:\ce{Pu}. - HTML:
Pu; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for plutonium?
The chemical symbol for plutonium is Pu.
What is the atomic number of plutonium?
Plutonium has atomic number 94, meaning each atom has 94 protons.
What is the electron configuration of plutonium?
The ground-state electron configuration of plutonium is [Rn]7s² 5f⁶.
Related symbols
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Reference: Plutonium on PubChem (NIH)