Q121. In a nuclear reaction, which of the following quantities are conserved?Physics — NUST Mock By IBAGRADS 3 — Question 121 of 200A. Atomic number onlyB. Mass number onlyC. Atomic number, mass number, and mass-energyD. Mass-energy onlyPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →