Conservation of mass number

Key term for OCR GCSE Physics A, used in Radioactive emissions.

Definition

The principle that the total number of nucleons remains constant before and after radioactive decay.

Exam Context

Conservation of mass number appears in OCR GCSE Physics A revision content for Radioactivity, especially Radioactive emissions and Balanced equations for decay.

Radioactivity Radioactive emissions Balanced equations for decay

Found in Revision Notes

Radioactivity

Balanced equations for decay

Radioactive emissions • Balanced equations for decay

Revise note

Related Key Terms

Alpha particle Atomic number Beta particle Conservation of atomic number

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