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
• B. A -> Metal, B -> Metal, C -> Metal
• C. A -> Metal, B -> Non-Metal, C -> Non-Metal
• D. A -> Metal, B -> Metal, C -> Non-Metal

Answer 1

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.