Chemistry 0620 · IGCSE · Isotopes

Isotopes — practice question

A neutral atom, J, has 45 neutrons and 35 electrons. Which row shows the correct information for atom J?

  • Aproton number 35, nucleon number 45
  • Bproton number 35, nucleon number 80
  • Cproton number 45, nucleon number 45
  • Dproton number 45, nucleon number 80

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