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Nuclear Atom Structure

OCR GCSE Chemistry A (J248) — Particles

What You Need to Know

Describe the atom as a positively charged nucleus surrounded by negatively charged electrons.
Understand that the nuclear radius is much smaller than the radius of the atom.
Explain that most of the mass of the atom is concentrated in the nucleus.

OCR GCSE Chemistry A (J248) — Particles

Describe the atom as a positively charged nucleus surrounded by negatively charged electrons.
Understand that the nuclear radius is much smaller than the radius of the atom.
Explain that most of the mass of the atom is concentrated in the nucleus.