Chemistry A-Level
nuclear atom
What nuclear atom means in Chemistry A-Level, as defined for AQA.
Definition of nuclear atom
Check what you remember
Read the wording for your board, then hide it and explain nuclear atom in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A model in which almost all the mass and all the positive charge sit in a tiny central nucleus, because a diffuse positive charge could not make alpha particles bounce back.
Topics that use nuclear atom
- Fundamental particles (AQA A-Level)
Related terms
- electrostatic attraction
- First ionisation energy
- Orbital
- relative mass
- shells and energy levels
- Atomic Number (Z)
- discovery of the neutron
- electrical neutrality
Using nuclear atom in the exam
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