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Photoelectron Spectroscopy

AP Chemistry· difficulty 3/5

binding energy → 2p 2s 1s

The PES sketch is consistent with which atom?

  • A

    He (1s²)

  • B

    N (2s² 2p³)

    check_circle
  • C

    Ne (2s² 2p⁶)

  • D

    C (2s² 2p²)

Explanation

Peaks (relative areas): 1s=2, 2s=2, 2p=3 → seven electrons total → N.

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