Key term for Edexcel GCSE Chemistry, used in Ionic Bonding.
An alternative term for atomic number, representing the number of protons in the nucleus.
Proton number appears in Edexcel GCSE Chemistry revision content for Key Concepts in Chemistry, especially Ionic Bonding and Subatomic Particles in Ions.
Key Concepts in Chemistry
Ionic Bonding • Subatomic Particles in Ions
Key Concepts in Chemistry
The Periodic Table • Atomic Number and Position
Key Concepts in Chemistry
Atomic Structure • Calculating Subatomic Particles
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