ATOMS

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Atoms

Atoms and elements are the building blocks of chemistry. Atoms contain protons, neutrons and electrons. When elements react they produce compound

What are atoms?

  • All substances are made of atoms.
  • A substance that is made of only one sort of atom is called an element.
  • Atoms have a small central nucleus, which is made up of protons and neutrons and around which there are electrons

All about elements

  • There are about 100 different elements.
  • Elements are shown in the periodic table.
  • The groups contain elements with similar properties.
  • The zig zag line seperates the metals on the left and the non- metals on the right (Hydrogen is a non metal!)
  • Atoms of each element are represented by a chemical symbol, eg O represents an

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