Which of the following sub-shell does not exist?
Correct answer: A. 1p
- A. 1p
- B. 5d
- C. 7f
- D. 1s
Explanation
The "1p" sub-shell does not exist. In electron configuration notation, sub-shells are represented by a combination of numbers and letters. The numbers indicate the principal energy level (or shell) and the letters represent the sub-shell type. The letters used to denote sub-shells are s, p, d, and f. However, there is no "1p" sub-shell. The correct notation for the sub-shells in the first principal energy level would be 1s.
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