The fundamental rules governing how unstable atoms shed their energy
In short: Understand the precise mechanics of nuclear decay for your 2027/28 exams. This video breaks down how different types of radiation fundamentally alter—or preserve—the identity and mass of an atom.
Nuclear decay occurs when unstable nuclei release particles or energy to reach a more stable state. The video explores four specific processes: alpha decay, where the nucleus emits a particle that changes both its mass number and atomic number; beta decay, involving a neutron transforming into a proton while emitting an electron; and gamma radiation, which releases energy without altering the atom's core identity.
Additionally, it covers neutron emission, another way for nuclei to shed mass. By using worked examples like the alpha decay of Radium-226, the content demonstrates how to accurately write these equations, ensuring you can track the shifting balance of protons and neutrons in any given reaction.
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Sources
- Summary by Intellect · source: GCSE Physics - Nuclear Decay Equations - Alpha, Beta & Gamma Radiation (2027/28 exams)
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