90 - Thorium [Th]

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element by name0

90: Thorium - Thorium [Th]
Group: 3
Period: 7
Atomic number: 90
Atomic mass: 232.03806
Configuration: [Rn] 6d²7s²
Covalent radius: 206 pm
Ionization energy: 6.3067 eV
Electronic term: ³F₂
Electronegativity: 1.3