Which of the following are true for an element? (i) Atomic number = number of protons + number of electrons (ii) Mass number = number of protons + number of neutrons (iii) Atomic mass = number of protons = number of neutrons (iv) Atomic number = number of protons = number of electrons

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MCQ (Single)Relationship Between Atomic Number, Mass Number and Sub-atomic ParticlesNCERT Exemplar

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