Q6Multiple choice
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
- (a)(i) and (ii)
- (b)(i) and (iii)
- (c)(ii) and (iii)
- (d)(ii) and (iv)
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(d) (ii) and (iv)