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03-11-2016
Chemistry

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chemical properties of potassium

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Аноним Аноним

07-11-2016

Atomic number19
Atomic mass39.0983g.mol -1
Electronegativity according to Pauling0.8
Density0.86
g.cm -3 at 0 °C
Melting point 63.2 °C

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