Chemistry
An element has 3 electrons in its M shell. It belongs to:
- Period 13, group 3
- Period III, group 3
- Period III, group III B
- Period III, group 13
Periodic Table
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Answer
Period III, group 13
Reason — The element having three shells [K, L, M] with three electrons in the valence shell is in group 13 [III A] and period 3. The name of the element is Aluminium.
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