CHMA10H3 Lecture Notes - Lecture 21: Spin Quantum Number, Atomic Orbital, Paramagnetism
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CHMA10H3 Full Course Notes
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The quantum mechanical model of electrons in atoms. Electron spin: if a beam of hydrogen atoms is directed through a magnetic field, half of them will be deflected upward and the other half downward. Electrons in h atoms can generate either one of only 2 possible orientations of their magnetic field with respect to the external magnetic field. Electron spin explain magnetic properties of certain substances. If passed through a magnetic field, there will be no splitting. Paramagnetic substances are attracted by an external magnetic field. Paramagnetism is attributed to the spin of unpaired electrons. Psi2 is a measure of probability of finding the electron at any point in space (electron density) The picture shows a view of the 1s (n=1, l=0) orbital r90 indicates the radius of the sphere containing 90% of the electron density. The further away form the nucleus, there"s a lower electron density.
