Edexcel GCSE Physics · 1PH0
Specification 6.4 · Paper 1
Revise: Nucleus CharacteristicsThe number of protons is carbon’s characteristic nuclear charge: it is shared by all carbon nuclei and distinguishes carbon from every other element.
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GCSE Physics · key term
The positive electric charge of a nucleus, produced by its protons.
Used by Edexcel and OCR
Specification 6.4 · Paper 1
Revise: Nucleus CharacteristicsThe number of protons is carbon’s characteristic nuclear charge: it is shared by all carbon nuclei and distinguishes carbon from every other element.
Specification P6.1a · Paper 2 (Foundation), Paper 4 (Higher)
The total positive charge of a nucleus, produced by all of its protons.
When interpreting an atomic diagram, count the protons—not all particles in the nucleus—to identify the element or determine its nuclear charge.
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Every nucleus of a particular element has the same number of protons. This gives that element its characteristic positive nuclear charge.