Uploaded April 2025 | Updated September 2026, 54 minutes ago
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In this video, we look at the Dalton model of an atom. We explore what Dalton proposed in his Atomic Theory of 1803. We look at what is correct about Dalton's atomic theory and what was proven incorrect by the later discovery of the subatomic particles the proton, the neutron and the electron. We look at how the discovery of isotopes also proved that Dalton's atomic theory was not fully correct.
Image credits
John Dalton
commons.wikimedia.org/wiki/File:John_Dalton_by_Charles_Turner.jpg
Charles Turner, Public domain, via Wikimedia Commons
Find your 9s with PLUS. Click the link to try for free freesciencelessons.co.uk/modules/gcse-chemistry-1-triple
Teachers, to get PLUS for your school, email schools@freesciencelessons.co.uk
In this video, we look at the Dalton model of an atom. We explore what Dalton proposed in his Atomic Theory of 1803. We look at what is correct about Dalton's atomic theory and what was proven incorrect by the later discovery of the subatomic particles the proton, the neutron and the electron. We look at how the discovery of isotopes also proved that Dalton's atomic theory was not fully correct.
Image credits
John Dalton
commons.wikimedia.org/wiki/File:John_Dalton_by_Charles_Turner.jpg
Charles Turner, Public domain, via Wikimedia Commons
