Potassium

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name Potassium latin Kalium french Potassium german Kalium symbol K proton number 19 atomic weight 39.0983 Pauling electronegativity 0.82 electronic configuration [Ar] 4s1 >> show long melting point 336.53 K, 63.38°C, 146.08°F boiling point 1032 K, 759°C, 1398°F group 1 period 4 state (by 20°C) solid oxidation states +1

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