9701/121 mark
May/June 2025 · Question 2
1.1 Particles in the atom and atomic radius
1.1 Particles in the atom and atomic radius

9701/121 mark
May/June 2025 · Question 14
1.1 Particles in the atom and atomic radius
1.1 Particles in the atom and atomic radius

9701/2210 marks
May/June 2025 · Question 2
1.1 Particles in the atom and atomic radius, 1.2 Isotopes, 1.3 Electrons, energy levels and atomic orbitals
1.1 Particles in the atom and atomic radius1.2 Isotopes1.3 Electrons, energy levels and atomic orbitals
