Question

1. match the correct places on the model with the parts of an atom.

Explanation:

• The green particles with a + sign are protons (positive charge, in nucleus).
• The blue particles without a charge sign are neutrons (neutral, in nucleus).
• The small particles in the cloud around the nucleus are electrons (negative charge, orbit nucleus).

So: Top box (green +): proton; Middle box (blue): neutron; Bottom box (cloud particle): electron.

Answer:

Top dashed box: proton
Middle dashed box: neutron
Bottom dashed box: electron