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A nucleus of strontium-90 is represented using nuclide notation as ⁹⁰₃₈Sr.
Determine the number of electrons in one atom of strontium-90.
0625/31/M/J/24Cambridge IGCSE Physics 0625 · May/June 2024 · Paper 3 variant 1 · Question 10(a)(ii)
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Suggested time: 2 min