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An element has its electronic configurat...

An element has its electronic configuration as 2, 8, 2. Now anwswer the following questions :
To which period does this element belong?

Text Solution

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Atomic number of this element is 12 and its electronic configuration is (2, 8, 2) . It has 3 shells. The number of shells indicates the period number. Hence it belongs to period 3.
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