| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.sl.TZ0.5 |
| Level | SL | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 5 | Adapted from | N/A |
Question
What is the number of protons and the number of neutrons in 131I?
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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