| Date | November 2013 | Marks available | 1 | Reference code | 13N.1.HL.TZ0.29 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 29 | Adapted from | N/A |
Question
The diagram shows the three lowest energy levels of an atom.
Which diagram shows the emission line spectrum associated with electron transitions from energy level X?
Markscheme
A
Examiners report
A number of candidates opted for B, seemingly forgetting the reciprocal relationship between energy and the wavelength of the photos emitted.
Syllabus sections
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