InterviewSolution
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InterviewSolution
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The electronic configuration of an element X is 2, 8, 1 and element Y is 2, 8, 18, 8, 1. i. Identify the group of X and Y. ii. What is the period number of Y? iii. How many valence electrons are there in the atoms of X and Y? iv. What is the valency of X and Y? v. State whether X and Y are metals or non-metals. |
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Answer» i. Group of X and Y is IA. ii. X belongs to 3rd period and Y belongs to 5th period. iii. Valence electrons of X and Y is 1. iv. Valency of X and Y is 1. v. X and Y are alkali metals. |
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