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10203040506070809010011000.511.522.53‌ Å

94 - Plutonium actinide

Atomic Mass (u)

244

Density (g/cm³)

19.82

Phase

Solid

Year of Discovery

1940
PlutoniumPuElectron 1Electron 2Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 19Electron 20Electron 21Electron 22Electron 23Electron 24Electron 25Electron 26Electron 27Electron 28Electron 29Electron 30Electron 31Electron 32Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 19Electron 20Electron 21Electron 22Electron 23Electron 24Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 1Electron 2

Plutonium is a transuranic radioactive chemical element with symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states.

94 Atomic Number
244  u Atomic Mass
913.15  K Melting Point
3501  K Boiling Point
19.82  g/cm³ Density
null  Å Atomic Radius
1.87  Å Covalent Radius
1.28 Electronegativity
6.03  eV First Ionization Energy
-48.33 Electron Affinity
7 Number of Shells
2, 8, 18, 32, 24, 8, 2 Electron Shell Occupations
null  J/g Specific Heat