Skip to content

Course home

A Level
Chemistry AQA
Question bank

Atomic structure

1 2 3 4 5 6 7 8 9 10 11

Question 5

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

$NO+\text{NO}^+$ and $CN−\text{CN}^-$

$Sc3+\text{Sc}^{3+}$ and $Cl−\text{Cl}^-$

$O3\text{O}_3$ and $SO2\text{SO}_2$

$NH2−\text{NH}_2^-$ and $H3O+\text{H}_3\text{O}^+$

Atomic structure Questions

A Level
Chemistry
Atomic structure