DP Chemistry (last assessment 2024)

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Question 22M.1.sl.TZ2.5

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1.sl.TZ2.5
Level sl Paper 1 Time zone TZ2
Command term State Question number 5 Adapted from N/A
5.
[Maximum mark: 1]
22M.1.sl.TZ2.5

Which experimental results support the theory that electrons exist in discrete energy levels?

A.  1H NMR

B.  X-ray diffraction pattern

C.  Emission spectra

D.  IR spectra

[1]

Markscheme

C

Examiners report

A well answered question. 84% of the candidates identified emission spectra as the experimental results that support the theory that electrons exist in discrete energy levels.

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