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Mass Number — OCR Chemistry A Definition | GradeGen.AI

Courses
Chemistry A
Key Terms
Mass Number

GCSEOCRJ248

Mass Number

Key term for OCR GCSE Chemistry A, used in Atomic structure.

Definition

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

Exam Context

Mass Number appears in OCR GCSE Chemistry A revision content for Particles, especially Atomic structure and Subatomic Calculations.

Particles Atomic structure Subatomic Calculations

Study Pathways

Particles

Atomic structure

Subatomic Calculations

Particles

Atomic structure

Nuclear Atom Structure

Found in Revision Notes

Particles

Subatomic Calculations

Atomic structure • Subatomic Calculations

Particles

Nuclear Atom Structure

Atomic structure • Nuclear Atom Structure

Related Key Terms

Anion Atomic number Atomic radius Cation

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Electrostatic attraction