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#Question id: 27378


Choose the correct statements
(i) Atomic number = number of protons + number of electrons
(ii)Mass number = number of protons + number of neutrons
(iiiAtomic number = number of protons = number of neutrons
(iv)Atomic number = number of protons = number of electrons

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. (i) and (ii)
  2. (i) and (iii)

  3. (ii) and (iii)

  4. (ii) and (iv)

Answer:- Option(s): 4


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