An element has electronic structure 2,8,8,2 Identify the period number.
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Explanation:
Electronic configuration of 'X' is 2, 8, 8, 2. (a) X belongs to period 4 because it has 4 energy shells. (b) Since X has 2 valence electrons, so it belongs to group no. ... (c) The valency of X is 2 because it can acquire stable gas configuration by losing 2 electrons. ♥️♥️♥️
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