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Which of the following is NOT a correct ordering of subshells in the periodic table?

A. 2p < 3s
B. 3d < 4p
C. 3d < 4s
D. 4s < 4p

Answer :

Final answer:

The correct ordering of subshells in the periodic table.


Explanation:

In the periodic table, the subshells are ordered based on increasing energy levels as follows:

  1. 1s
  2. 2s, 2p
  3. 3s, 3p
  4. 4s, 3d, 4p
  5. 5s, 4d, 5p
  6. 6s, 4f, 5d, 6p
  7. 7s, 5f, 6d, 7p

Therefore, the correct ordering of subshells in the periodic table is:

  • 3d < 4s
  • 3d < 4p
  • O2p 3s
  • O4s < 4p

So, the incorrect ordering is O4s < 4p.


Learn more about Subshells in the periodic table here:

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