Atomic Architecture · Chemical Science

Isotopes and Radioactive Decay

Understanding why certain atoms are unstable and how they release energy as they transform.

Key Questions

  1. 1What makes a nucleus decide to fall apart?
  2. 2How can we use the decay of atoms to determine the age of ancient artifacts?
  3. 3What would happen if we could perfectly shield ourselves from all background radiation?

ACARA Content Descriptions

AC9S9U05
Year: Year 9
Subject: Science
Unit: Atomic Architecture
Period: Chemical Science

Suggested Methodologies

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Mapping the evolution of the atomic model from solid spheres to the proton-neutron-electron configuration.

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