| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.TZ1.25 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 25 | Adapted from | N/A |
Question
What is the definition of the unified atomic mass unit?
A. \(\frac{1}{{12}}\) the mass of a neutral atom of carbon-12
B. The mass of a neutral atom of hydrogen-1
C. \(\frac{1}{{12}}\) the mass of a nucleus of carbon-12
D. The mass of a nucleus of hydrogen-1
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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