| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.HL.TZ1.28 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 28 | Adapted from | N/A |
Question
The diagram shows four possible electron energy levels in the hydrogen atom.
The number of different frequencies in the emission spectrum of atomic hydrogen that arise from electron transitions between these levels is
A. 0.
B. 2.
C. 4.
D. 6.
Markscheme
D
Examiners report
[N/A]
Syllabus sections
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