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The directional characteristics of atomic orbital is explained in terms of the interaction between the resultant orbital angular momentum (or magnetic moment) and an externally applied magnetic field. A...
When an atom becomes part of a molecule there are changes in the size and the shape of the charge-cloud associated with any one of the nuclei. If the atom forms a covalent bond to a neighbour, the size of...
Discusses the Geiger and Marsden experiment (1913) on the scattering of alpha particles by a metal foil.
Part 2 explains fission products of a nuclear reactor, neutron reactions, proton reactions and positron decay.
An experiment to give an idea of the size of atoms is followed by suggestions for teaching the concept of gram-atoms using a film-loop and other visual aids. The idea of a gram formula is explained and...
Tells the story of the structure and splitting of the atom. Beginning in 1895 with the work of J J Thomson in the Cavendish Laboratory in Cambridge, which by 1897 was to disprove the conception of the atom...
Shows the discharge patterns which occur when pressure is progressively reduced, and explains the theory of discharge through rarefied gases. Animated diagrams explain stage by stage how light is produced by...
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