Which of the ground state electron configurations are correct for 14 Si? (There

Question

Which of the ground state electron configurations are correct for 14Si? (There may be more than one)

Which of the ground state electron configurations are correct for 14Si? (There may be more than one)

1. Correct or Incorrect  1s2 2s2 2p6 3s2 3p2
2. Correct or Incorrect  [Ne]3s2
3. Correct or Incorrect  [Ne]3s2 3p4
4. Correct or Incorrect  1s2 2s2 2p6 3s2
5.Correct or Incorrect  1s2 2s2 2p6 3s2 3p3
6.Correct or Incorrect  [Ne]3s2 3p1
7.Correct or Incorrect  1s2 2s2 2p6 3s2 3p4
8. Correct or Incorrect  1s2 2s2 2p6 3s2 3p1

Explanation / Answer

The atomic number of Si is 14

So the electronic configuration of Si is : 1s2 2s2 2p6 3s2 3p2    OR [Ne] 3s2 3p2

Given statements are ;

1. Correct or Incorrect  1s2 2s2 2p6 3s2 3p2        (correct)
2. Correct or Incorrect  [Ne]3s2                          (incorrect)
3. Correct or Incorrect  [Ne]3s2 3p4                   (incorrect)
4. Correct or Incorrect  1s2 2s2 2p6 3s2              (incorrect)
5.Correct or Incorrect  1s2 2s2 2p6 3s2 3p3         (incorrect)
6.Correct or Incorrect  [Ne]3s2 3p1                    (incorrect)
7.Correct or Incorrect  1s2 2s2 2p6 3s2 3p4        (correct)
8. Correct or Incorrect  1s2 2s2 2p6 3s2 3p1       (incorrect)

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