Learn: Protons, Neutrons, and Electrons - Relative Charge and Relative Mass

Welcome!Today we'll explore protons, neutrons, and electrons. This lesson will help you understand their relative charge and mass. Let’s dive into the atomic world!

What Are Subatomic Particles?Atoms are made up of three main subatomic particles: protons, neutrons, and electrons. These particles determine the properties of an atom. Protons and neutrons are found in the nucleus, while electrons orbit around it.

Relative ChargeEach subatomic particle has a specific relative charge: protons have a charge of +1, neutrons have no charge (0), and electrons have a charge of -1. These charges are important for understanding how atoms interact.

Relative MassSubatomic particles also have different relative masses. Protons and neutrons both have a mass of approximately 1, while electrons have a much smaller mass, approximately 1/1836 of a proton or neutron.

How Do These Properties Define Atoms?Protons define the atomic number, which determines the element. Neutrons affect the mass number, and electrons influence the atom's charge and chemical behaviour. Together, they make up the structure of an atom.

Review Time!Well done! You've learned about protons, neutrons, and electrons, their relative charges, and relative masses. Let’s review with a few questions to test your understanding.