94
Pu
Plutonium
Plutonium
Plutonium (Pu)
Actinides · Solid · Period 7 · Group 3
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Element Properties
- Atomic Number
- 94
- Symbol
- Pu
- Atomic Mass
- 244.0642
- Category
- Actinides
- Standard State
- Solid
- Period
- 7
- Group
- 3
- Electronegativity
- 1.28
- Atomic Radius
- 243
- Ionization Energy
- 6.06
- Electron Affinity
- —
- Oxidation States
- +6, +5, +4, +3
- Melting Point
- 913 K (639.85 °C)
- Boiling Point
- 3501 K (3227.85 °C)
- Density
- 19.84
- Electron Configuration
- [Rn]7s2 5f6
- Year Discovered
- 1940
Frequently asked questions
What is the atomic number of Plutonium?
The atomic number of Plutonium is 94, which equals the number of protons in its nucleus.
What is the atomic mass of Plutonium?
The atomic mass of Plutonium is approximately 244.0642 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Plutonium?
The electron configuration of Plutonium is [Rn]7s2 5f6.
Where is Plutonium in the periodic table?
Plutonium is located in period 7, group 3.
When was Plutonium discovered?
Plutonium was discovered in 1940.
Related elements
Same group
21
Sc
Scandium
44.956
39
Y
Yttrium
88.906
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.24