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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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About Atomic Structure

Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.

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