Thorium

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name Thorium latin Thorium french Thorium german Thorium symbol Th proton number 90 atomic weight 232.0381 Pauling electronegativity 1.3 electronic configuration [Rn] 5f06d27s2 >> show long melting point 2115 K, 1842°C, 3347°F boiling point 5093 K, 4820°C, 8708°F group - period 7 state (by 20°C) solid oxidation states +4

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