94Pu244
Plutonium
Actinide · element 94 · f-block (shown below the main table)
Quick facts
| Symbol | Pu |
|---|---|
| Atomic number | 94 |
| Relative atomic mass | 244 |
| Category | Actinide |
| Position | f-block (shown below the main table) |
| State at 20 °C | Solid |
| Melting point | 639.4 °C |
| Boiling point | 3,228 °C |
| Density | 19.82 g/cm³ |
| Electronegativity | 1.28 |
| Electron configuration | [Rn] 5f6 7s2 |
About Plutonium
Plutonium has the symbol Pu and atomic number 94, which means every plutonium atom has 94 protons in its nucleus and, in a neutral atom, 94 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 639.4 °C and boils at 3,228 °C.
Explore it
See where plutonium sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.