Chemistry 0620 · IGCSE · Relative masses of atoms and molecules

Relative masses of atoms and molecules — practice question

Chlorine has a relative atomic mass of 35.5. When calculating relative atomic mass, what particle is used as the comparison for the mass of a chlorine atom?

  • Aa neutron
  • Ba proton
  • Can atom of carbon-12
  • Dan atom of hydrogen-1

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