Chemistry 0620 · IGCSE · Isotopes

Isotopes — practice question

The table sets out the numbers of protons, neutrons and electrons for particles A to I.
(a(i))[1]

State which particle, from A to I, is an anion.

(a(ii))[2]

State which particles, from A to I, are cations.

(a(iii))[2]

State which particles, from A to I, are noble gas atoms.

(a(iv))[1]

State which particle, from A to I, is a halogen atom.

(a(v))[1]

State which particle, from A to I, is a Group I atom.

(a(vi))[1]

State which particles, from A to I, have the same nucleon number.

(a(vii))[1]

State which particle, from A to I, causes acidity in aqueous solutions.

(a(viii))[1]

State which particle, from A to I, is used to define the relative atomic mass of elements.

(b)[2]

Explain how B and C are isotopes of the same element.

Worked solution & mark scheme

This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: Particle $\text{E}$

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