3.4.9

Charges

Test yourself

Charges

Particles can exist with a charge or no charge.

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Charges

  • Particles can have positive charges.
  • Particles can have negative charges.
  • Particles can have no charge.
  • Overall an atom is neutral. It has no charge.
  • If an atom becomes charged we call this an ion.
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Particles in the atom

  • Protons have a positive charge.
  • Neutrons have no charge. They are neutral.
  • Electrons have a negative charge.
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Becoming charged

  • If an atom loses an electron it will become positively charged.
  • If an atom gains an electron it will become negatively charged.
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Attract or repel?

  • Two oppositely charged particles will attract each other.
  • Two particles with the same charge will repel each other.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Thinking Scientifically

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