MATH-022 Study Guide - Quiz Guide: Aufbau Principle, Paramagnetism, Actinide
1 Aug 2016
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Electron configuration shows how electrons are distributed among the various atomic orbitals. The electron configuration can also be represented by an orbital diagram that shows the spin of the electron. Pauli exclusion principle no two electrons in an atom can have the same 4 quantum numbers. In other words, only two electrons can occupy the same orbital, and they have opposite spins. Paramagnetic substances are those that contain net unpaired spins and are attracted by magnets. Diamagnetic substances do not contain net unpaired spins and are slightly repelled by magnets. The lessening of attractive electrostatic charge difference between nuclear protons and valence electrons by. Partially or fully filled inner shells, effect increase with the number of inner shells. Hund"s rule the most stable arrangement of electrons in subshells is the one with the greatest # of parallel spins. The two irregularities for hund"s rule is chromium (z = 24, [ar] 4s. 13d5) and copper (z = 29, [ar] 4s13d10)
