| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.TZ2.24 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 24 | Adapted from | N/A |
Question
Atomic spectra are caused when a certain particle makes transitions between energy levels.
What is this particle?
A. Electron
B. Proton
C. Neutron
D. Alpha particle
Markscheme
A
Examiners report
[N/A]
Syllabus sections
Show 124 related questions
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