Plutonium (Pu), element 94 – Learn Acer periodic table

Actinide, atomic number 94.

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.

Symbol Pu. Atomic mass 244.0 u. Group 3, period 7. Electron configuration [Rn] 5f6 7s2. Electrons per shell 2, 8, 18, 32, 24, 8, 2. State at room temperature: Solid. Melting point 639.4 °C, boiling point 3231.8 °C. Discovered by Glenn T. Seaborg.

Element data from Wikipedia, CC BY-SA 3.0.

Plutonium (Pu), element 94 – Learn Acer periodic table

Plutonium

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