Chemistry, asked by Athistr, 1 year ago

calcium and zinc have valencies 2 but they are not arranged in same period. why?

Answers

Answered by SilverLightning123
1
elements with same valencies are arranged in the same group not period......elements with same no of shells are arranged in the same period...
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Answered by nikhil10
1
This is because they have different number of shells.The periods depend on number of shells and not valency or valence electrons.both of them have same number of ve so they are placed in the same group not period.
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