Periodic table of elements

91 - Protactinium [Pa]

91: Protactinium - Protactinium [Pa]
Group: 3
Period: 7
Atomic number: 91
Atomic mass: 231.03588
Configuration: [Rn] 5f26d17s2
Covalent radius: 200 pm
Ionization energy: 5.89 eV
Electronic term: 4K11/2
Electronegativity: 1.5

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