| Date | November 2011 | Marks available | 1 | Reference code | 11N.1.HL.TZ0.27 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 27 | Adapted from | N/A |
Question
A fission reaction for uranium is
\[{}_{92}^{235}{\rm{U}} + {\rm{n}} \to {}_{56}^{141}{\rm{Ba}} + {}_Z^A{\rm{Kr}} + 3{\rm{n}}\]
where n is the neutron. Which of the following gives the value of the nucleon number A and proton number Z for the krypton (Kr)?
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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