Chemistry 0620 · IGCSE · Isotopes

Isotopes — practice question

The percentage abundances of three isotopes in a neon sample are given. Determine the relative atomic mass, $A_r$, of this neon sample.

  • A10.19
  • B20.19
  • C21.00
  • D30.19

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

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