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Atoms and reactions

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Question 9

65%

Which atom is not an isotope of krypton?

A

Number of neutrons: $48$ , Mass number: $84$

B

Number of neutrons: $50$ , Mass number: $86$

C

Number of neutrons: $47$ , Mass number: $83$

D

Number of neutrons: $46$ , Mass number: $83$

Markscheme

Atoms and reactions Questions

A Level
Chemistry
Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank