The atomic numbers of three element A, B and C are 12, 18 and 20 respectively. State, giving reason, which two elements will show similar properties.
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Answered by
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A and C will have the similar properties as both of them have 2 electrons in its outermost shell i.e, they have same valency and In A the valence electron enters into the 3s orbital and in B it enters in 4s orbital i.e, both of them enters in s orbital .I hope the reason is correct.
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Answer:
A and C
Explanation:
Because they have same number valence electons and they both are metal. While B is a noble gas.
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