May/June 2026 Paper 13

2026 · 40 questions · 40 parts · 40 marks

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4Atomic Structure IsotopesMedium1 mark
The Ge isotope undergoes a natural radioactive process to give an isotope of a different element, X. This transformation of Ge occurs when an electron enters the nucleus and changes a proton into a neutron. Which statement about the composition of an atom of X is correct?