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Elements A to E have the following elect...

Elements `A` to `E` have the following electronic configuration:
`A: [He]2s^(2) 2p^(2)`, `B: [Ne]3s^(2) 3p^(2)`, `C: [Ne]3s^(2) 3p^(3)`,
`D: [Ne]3s^(2) 3p^(4)`, `E: [Ar]4s^(2)`.
Which of the above will belong to the same group in the periodic table?

Text Solution

Verified by Experts

Elements having similar valence electronic configuration belong to the same group of the periodic table.
Therefore, elements `A` and `B` having four electrons in the valence shell, i.e. `2s^(2) , 2p^(2)` and `3s^(2) 3p^(2)` respectively belong to the same group, i.e. group `14` of the periodic table.
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