Astatine

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name Astatine latin Astatium french Astate german Astat symbol At proton number 85 atomic weight [210] Pauling electronegativity 2.2 electronic configuration [Xe] 4f145d106s26p5 >> show long melting point 575 K, 302°C, 575°F boiling point - group 17 period 6 state (by 20°C) solid oxidation states -1, +1, +3, +5, +7

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