2.3.1

Atoms

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Atoms

Everything in the universe is made of tiny particles. We call these particles ‘atoms’. Solids, liquids and gases are made of atoms arranged in different ways. You are also made completely of atoms!

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Atoms

  • Atoms are far too small to see with our eyes, or even with a normal microscope.
  • There is a special type of strong microscope called an electron microscope that allows us to see their outline though.
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The atomic model

  • Atoms were discovered by a scientist called John Dalton.
  • There are lots of different types of atom, which all have different names.
  • We often show different atoms by giving them different colours in a diagram.

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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