| Date | November 2010 | Marks available | 1 | Reference code | 10N.1.HL.TZ0.33 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 33 | Adapted from | N/A |
Question
The energies of alpha particles and of gamma-rays emitted in radioactive decay are discrete. This observation is evidence for
A. atomic energy levels.
B. nuclear energy levels.
C. nuclei having more neutrons than protons.
D. the existence of isotopes.
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Show 124 related questions
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