Define valence of an element. Find the valency of chlorine and magnesium (At. No. of chlorine = 17, magnesium = 12).
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Answer:
the no. of electron present in the outer most shell is known as valance electron and the valency are 1 and 2 respectively
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chlorine valence is 1
magnesium valence is 2
Explanation:
vamence of an element was defined as the combining power of an element with respect to hydrogen,oxygen or indirectly any other element
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