Outlining how our understanding of atoms has changed over time, leading to the nuclear model, Bohr Model and electron cloud model. Sub-atomic particles and proton number and mass number are covered, along with energy levels and shells.
For AQA, OCR (A), Edexcel and CIE A-level and IB Chemistry.
What is an atom?: 00:32
History of the atom: 02:45
Energy levels, sub shells and orbitals: 05:45
Example - Sodium: 07:42
Isotopes: 10:24
Summary: 11:05
Pages on chemistrystudent.com:
https://www.chemistrystudent.com/atomicstructure.html
https://www.chemistrystudent.com/electronorbitals.html
https://www.chemistrystudent.com/electronconfigurations.html
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