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2015-11-05T00:24:20+05:30

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Member of group 1 can lose electron to form +1 cation
The members are Hydrogen, Lithium, Sodium, Potassium etc
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2015-11-05T00:39:12+05:30

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The elements of group 1 which are Alkali metals easily loose an electron to form 1⁺ cation. These elements have their valency 1⁺
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