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6 Radioactivity

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Question 49
F

What is the mass number of an atom?

[1]
A

The total number of protons and neutrons.

B

The total number of protons and positrons.

C

The total number of neutrons and electrons.

D

The total number of protons and electrons.

Markscheme

6 Radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6 Radioactivity

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