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प्रश्न
State why the valency of the metal potassium is +1 and of the non-metal chlorine is -1.
टीपा लिहा
उत्तर
Metal potassium (K) has 1 electron in the outer most shell which it loses and becomes K+ has valency [+1] whereas
Non-metal chlorine [Cl] has 7 electrons in the valence shell and gains 1 electron and becomes [Cl–] has valency [-1]
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