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Atomic structure

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Question 1
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Which of the following pairs contains two species with different total numbers of electrons?

NO+\text{NO}^+NO+ and N2\text{N}_2N2​

SO2\text{SO}_2SO2​ and O3\text{O}_3O3​

H3O+\text{H}_3\text{O}^+H3​O+ and NH3\text{NH}_3NH3​

CO32−\text{CO}_3^{2-}CO32−​ and NO3−\text{NO}_3^-NO3−​

Atomic structure Questions

  1. A Level
  2. /Chemistry
  3. /Atomic structure