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6 Radioactivity

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Question 9

The table gives information about particle X and ion Y.

ParticleInformation
particle Xrelative mass 11840\dfrac{1}{1840}18401​; relative charge +1
ion Ynucleus represented by 1226Mg{}^{26}_{12}\mathrm{Mg}1226​Mg; overall relative charge +2
a.

Give the name of particle X.

[1]
b.

Explain how the mass of the nucleus of ion Y compares with the mass of particle X.

[2]
c.

Calculate the number of neutrons in the nucleus of ion Y.

[1]
d.

Calculate the electrons' contribution as a fraction of the total mass of ion Y.

Give your answer in standard form.

[4]
Markscheme

6 Radioactivity Questions

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

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