Physics 0625 · IGCSE · The nuclear model of the atom

The nuclear model of the atom — practice question

The nuclide symbol for sodium is $^{{23}}_{{11}}\text{Na}$. Which row shows the numbers of particles in a neutral sodium atom?

  • Anumber of electrons: 11, number of protons: 11, number of neutrons: 12
  • Bnumber of electrons: 12, number of protons: 11, number of neutrons: 23
  • Cnumber of electrons: 12, number of protons: 12, number of neutrons: 11
  • Dnumber of electrons: 23, number of protons: 23, number of neutrons: 11

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