What is the mass number?
I- It indicates the total number of protons and electrons in the nucleus.
II- It indicates the total number of protons an...
What is the mass number?
I- It indicates the total number of protons and electrons in the nucleus. II- It indicates the total number of protons and neutrons in the nucleus. III- It indicates the total number of electrons and neutrons in the nucleus. a) Only I is correct. b) Only II is correct. c) Only III is correct. d) I and II are correct. e) II and III are correct.
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