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Atomic Structure and Mass Distribution — OCR GCSE Combined Science A J250
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Combined Science
OCR GCSE Combined Science A
Matter
Particle Model
Atomic Structure and Mass Distribution
OCR GCSE Combined Science A · J250
Atomic Structure and Mass Distribution
What you need to know
Describe the structure of an atom as a positively charged nucleus surrounded by negatively charged electrons.
Understand that the radius of the atomic nucleus is significantly smaller than the overall atomic radius.
Explain that the vast majority of an atom's mass is concentrated within its nucleus.
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Atomic Structure and Mass Distribution
5 key terms
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Previous subtopic
Evolution of the Atomic Model
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Dimensions of Atoms and Molecules
