Periodic Table of the Elements | Chemistry: A Volatile History
Professor Jim Al-Khalili looks at how the early scientists' bid to decode the order of the elements was driven by false starts and bitter disputes.
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Electricity and the Atomic scale | Shock and Awe: The Story of Electricity
Jim Al-Khalili explores how Ernest Rutherford's work on the atom revealed what electricity was on the atomic scale.
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What is electricity | Shock and Awe: The Story of Electricity
An electric current is essentially the flow of electrons (which are electrically charged) from one atom to another.