CHEM 1301 Chapter 4.5: Chapter 4 Atoms and Light 4.5 Quantization and Quantum Numbers
22 Nov 2017
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Chapter 4 atoms and light- 4. 5 quantization and quantum numbers. Key points: writing valid sets of quantum numbers fro a given set of orbitals. Mass, charge, spin and wave nature are properties of all electrons either freely moving in space or bound to atoms. They have additional important properties which are related to their energies and the shape of their waves. These properties can have only specific values, they are quantized. Free electrons (completely removed from atoms) can have any value of kinetic energy, whereas: Bound electrons have discrete energy states unique for each type of atoms. Many properties of atoms (such as reactivity, ability to form either cations or anions by losing or gaining a certain number of electrons, ability to exhibit metallic or nonmetallic properties etc. ) are related to the energies of electrons. The quantum concept states that energy is present in small, discrete bundles.
