atomic number 19 английский

Значение atomic number 19 значение

Что в английском языке означает atomic number 19?

atomic number 19

калий (= potassium) a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite

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