conservation of mass number
What conservation of mass number means in Physics GCSE, as defined for AQA, OCR.
Definitions of conservation of mass number
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Reference: OCR
An emission equation is balanced when the mass numbers on both sides agree, making the total on the left equal the total on the right.
The total mass number on the right equals the mass number on the left, because nucleon number is conserved.
Topics that use conservation of mass number
- Nuclear equations (AQA GCSE)
- Radioactive emissions (OCR GCSE)
Related terms
- conservation of charge
- Absorbing materials
- Alpha emission
- balanced nuclear equations
- balancing equations
- beta decay
- Beta emission
- Conventional nuclear notation
Using conservation of mass number in the exam
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