O Level Chemistry App (iOS & Android) | Proton and Nucleon Number MCQs e-Book PDF

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O Level Chemistry MCQs – Certification Test 46

Proton and Nucleon Number MCQs (Question 46) – App & e-Book Download

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MCQ 46: Purpose of a mass spectrometer is to determine the:

  1. charge of a particle
  2. particles
  3. mass of an atom
  4. data for data loggers

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