cbcrevision

Explain the importance of the tiny (subatomic) particles found inside the nucleus of an atom

The nucleus is made up of two types of subatomic particles:

1. Protons

Charge: Positive (+1)

Importance: The number of protons determines the identity of the element. For example, all carbon atoms have 6 protons.

Mass: Protons are heavy compared to electrons and add to the mass of the atom.

2. Neutrons

Charge: No charge (they are neutral)

Importance: Neutrons help to stabilise the nucleus by reducing repulsion between the positively charged protons.

Mass: Neutrons have almost the same mass as protons, so they also contribute to the weight of the atom.