Recognised as Chemical element
Plutonium
- Pu
- Z = 94
- actinide
- No stable isotope
Plutonium (Pu) is element 94, a actinide in period 7. Its most stable isotope has mass number 244. Weights follow IUPAC standard atomic weights, 2021 revision.
Identity
SymbolPu
Mass number of the most stable isotope244this element has no stable isotope
Mass in kilograms4.0517153 × 10^-25
Categoryactinide
GroupLanthanide/actinide series, with no group number
Period7
Blockf-block
Electrons in a neutral atom94
Neutrons in the most common isotope150≈
Quantities
Molar mass244 g/mol
Mass of one mole244 grams
Atoms in one gram2.4680905 × 10^21
Mass of one atom4.0517153 × 10^-22 g
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