What this topic covers
Atomic structure has 2 subtopics:
- Atoms and isotopes
- Atoms and nuclear radiation
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GCSE AQA Higher Combined Science Physics · Topic 4 of 8
Atomic structure – GCSE AQA Higher Combined Science Physics revision notes
Choose a subtopic. Atomic structure covers Atoms and isotopes and Atoms and nuclear radiation in GCSE AQA Higher Combined Science Physics. 15 lessons in 2 subtopics.
Revise Atomic structure for GCSE AQA Higher Combined Science Physics, including Atoms and isotopes and Atoms and nuclear radiation.
15
Lessons
2
Subtopics
Atomic structure lessons by subtopic
15 lessons, grouped by subtopic.
Atoms and isotopes
- Atomic Number, Mass Number, and Neutral Atoms
- Isotopes and Ion Formation
- Early Atomic Models
- The Nuclear Model
- Refining the Model: Bohr and Chadwick
- The Structure of the Atom
- Electron Arrangement and Energy Levels
Atoms and nuclear radiation
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Frequently asked questions
What is Atomic structure?
Atomic structure covers Atoms and isotopes and Atoms and nuclear radiation in GCSE AQA Higher Combined Science Physics. 15 lessons in 2 subtopics.
What is an isotope?
Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. The Isotopes and Ion Formation notes cover this in full.
What is the atomic number?
The atomic number is the number of protons in the nucleus of an atom, which defines the element. The Atomic Number, Mass Number, and Neutral Atoms notes cover this in full.
What is the relative mass of an electron?
The relative mass of an electron is 1/1840, which is negligible, compared with 1 for a proton or neutron. The The Structure of the Atom notes cover this in full.
Who discovered the electron?
J.J. The Early Atomic Models notes cover this in full.
What was the alpha particle scattering experiment?
The alpha particle scattering experiment was Rutherford's experiment in which alpha particles were fired at thin gold foil to investigate atomic structure by observing how the particles were deflected. The The Nuclear Model notes cover this in full.
What is a beta particle?
A beta particle is a high-speed electron ejected from the nucleus when a neutron transforms into a proton during radioactive decay. The Alpha, Beta, Gamma, and Neutrons notes cover this in full.
What is the atomic number of carbon?
The atomic number of carbon is 6, because every carbon atom has 6 protons. The Atomic Number, Mass Number, and Neutral Atoms notes cover this in full.
What is the structure of an atom?
An atom has a tiny, dense, positively charged nucleus containing protons and neutrons at its centre, with negatively charged electrons around it. The The Structure of the Atom notes cover this in full.