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Atomic structure and the periodic table

Part of Combined Science

  • Atomic structure and the periodic table

    • Atomic structure - (CCEA)

      Scientists’ ideas about atoms have changed over time. Today, they agree that atoms have a positively-charged nucleus made of protons and neutrons, and negatively-charged electrons that orbit the nucleus in shells.

    • The periodic table - (CCEA)

      The periodic table helps to categorise the known elements and make predictions about ones that we haven’t yet discovered.

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