(a)[3]
Complete the table for these sub-atomic particles.
(b(i))[1]
What is the nucleon number of particle A?
(b(ii))[1]
Explain why particle B is a negative ion.
(b(iii))[2]
Which two atoms are isotopes of the same element? Explain your answer.
Chemistry 5070 · O Level · Isotopes
Isotopes — practice question
Atoms and ions are composed of three kinds of sub-atomic particle.