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5.1.2a Composition of the nucleus and isotopes

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Question 128

An isotope of rubidium has an atomic number of 37 and a mass number of 85.

What is the number of protons in this rubidium nucleus?

A

373737

B

484848

C

858585

D

122122122

Markscheme

5.1.2a Composition of the nucleus and isotopes Questions

  1. IGCSE
  2. /Physics
  3. /5.1.2a Composition of the nucleus and isotopes

170 exam-style questions on CIE IGCSE Physics 5.1.2a Composition of the nucleus and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.

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