AQA A-Level Physics/Past paper questions

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Atomic Structure[edit | edit source]

1) Give the number of nucleons and the number of electrons in an atom of 22Na. (2 marks)

Nucleons =
Electrons =

2) What is meant by the term isotope?

3) Define the following (3 marks)

When removed from an atom, forms a charge

Has the largest mass-charge ratio

When removed from an atom, lowers overall mass