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6.3 Nuclear equations and decay

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Question 38

In a nuclear reactor, a nucleus with atomic number 35 and mass number 87 undergoes beta-minus decay. The nucleus that is formed then releases one neutron.

Which pair gives the atomic number and mass number of the nucleus left at the end?

[1]

atomic number $36$ ; mass number $85$

atomic number $35$ ; mass number $86$

atomic number $36$ ; mass number $86$

atomic number $34$ ; mass number $86$

Markscheme

6.3 Nuclear equations and decay Questions

GCSE
Physics
6.3 Nuclear equations and decay

120 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay, covering 6.3.1 Beta-minus and beta-plus decay, 6.3.2 Effects of decay on the nucleus, and 6.3.3 Balancing nuclear equations. Each one has a worked solution and a mark scheme showing where the marks go.

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