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Elemental Periodic Table


Atomic number: 91
Atomic weight: 231.03588
Symbol: Pa
Group number: (actinide)
Electronic configuration: [Rn].5f2.6d1.7s2

Physical data

Standard state: solid at 298 K
Colour: silvery metallic
Density of solid at ambient temperature/kg m-3: 15370
Molar volume/cm3: 15.18

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