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Which subatomic particles each have a mass of approximately 1 u?



August 2018 NY Regents Chemistry Exam


3 Which subatomic particles each have a mass of approximately 1 u? (1) proton and electron

(2) proton and neutron

(3) neutron and electron

(4) neutron and positron


Solution: Protons and neutrons each have a mass of approximately 1 u

Answer: 2


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