Chemistry 0620 · IGCSE · Isotopes

Isotopes — practice question

This question concerns uranium and compounds of uranium.
(a(i))[2]

Deduce how many electrons and neutrons are in one atom of this uranium isotope. number of electrons number of neutrons

(a(ii))[1]

State the principal use of this uranium isotope.

(b)[3]

Isotopes are [BLANK] of the same [BLANK] that have the same proton number but a different number of [BLANK].

(c)[2]

Give two physical properties that are typical of all metals.

(d)[3]

Complete the chemical equation for this reaction by: • making the equation balanced • placing the symbol for a reversible reaction in the box. $\text{2U} + \ldots\,\text{H}_2$ [BOX] $\ldots\,\text{UH}_3$

(e)[2]

Calculate the relative formula mass of this compound.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: electrons = 92

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI