C1.1.4 - Relative electrical charge of subatomic particles

• Relative charges of protons neutrons and electrons

  Protons: +1

  Electrons: -1

  Neutrons: 0
• Why is an atom neutrally charged?

  They have an equal number of protons (+1 charges) and electrons (-1 charges) which equal the charge.
• What does atomic number represent?

  The number of protons/electrons in an atom