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Mass Number (A) — Edexcel Physics Definition | GradeGen.AI

Courses
Physics
Key Terms
Mass Number (A)

GCSEEdexcel1PH0

Mass Number (A)

Key term for Edexcel GCSE Physics, used in Atomic Structure.

Definition

The total number of protons and neutrons in the nucleus of an atom.

Exam Context

Mass Number (A) appears in Edexcel GCSE Physics revision content for Radioactivity, especially Atomic Structure and Nucleus Characteristics.

Radioactivity Atomic Structure Nucleus Characteristics

Study Pathways

Radioactivity

Atomic Structure

Nucleus Characteristics

Electricity and circuits

Circuits, Potential Difference and Charge

Atomic Structure

Found in Revision Notes

Radioactivity

Nucleus Characteristics

Atomic Structure • Nucleus Characteristics

Electricity and circuits

Atomic Structure

Circuits, Potential Difference and Charge • Atomic Structure

Related Key Terms

Atomic Mass Unit (u)Atomic number (Z)Atomic (Proton) Number (Z)Characteristic positive charge

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