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Explores the diversity and structure of sponge spicules and skeletons, including the biomineralization process and the potential environmental archive they provide.
Covers the concept of chemical quantities, including physical and chemical quantities, atomic mass, isotopes, Avogadro's number, molar mass, molecules, and concentration.
Explores radiation sources, including fast electron sources, heavy charged particle sources, and neutron sources, covering processes like beta decay, internal conversion, and Auger electrons.
Explores electronic configuration, exceptions to the aufbau rule, and the periodic table structure, including historical perspectives and atomic properties.