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Question

The electronic configurations of atoms of three elements A. B and C are (2, 8, 1), (2, 8, 6) and (2, 8, 18, 7) respectively.
Which option classifies the elements A. B and C as metals and non-metals correctly?


A

A -> Non-Metal, B -> Non-Metal, C -> Non-Metal

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B

A -> Metal, B -> Metal, C -> Metal

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C

A -> Metal, B -> Non-Metal, C -> Non-Metal

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D

A -> Metal, B -> Metal, C -> Non-Metal

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Solution

The correct option is C

A -> Metal, B -> Non-Metal, C -> Non-Metal


A -> Metal, B -> Non-Metal, C -> Non-Metal

Metal : Loses electrons;to attain stable electronic configuration.

Non-Metal : Gains electrons to attain stable electronic configuration.


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