Chemical bonding
A chemical bond is a lasting attraction between atoms or ions that enables the formation of molecules and crystals. The bond may result from the electrostatic force between oppositely charged ions as in ionic bonds, or through the sharing of electrons as in covalent bonds.
2 episodes
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Free Radicals
Melvyn Bragg and guests discuss the reactive atoms and molecules, with single unpaired electrons, linked to the process of ageing as well as normal cell functioning
1 November 2018
Featuring: Nick Lane, Anna Croft, Mike Murphy
Pauli's exclusion principle
Melvyn Bragg and guests discuss one of the key principles in quantum mechanics, the Pauli Exclusion Principle, and the life and ideas of Wolfgang Pauli who proposed it.
6 April 2017
Featuring: Frank Close, Michela Massimi, Graham Farmelo