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Unformatted text preview: quantum state. o So each orbital can only hold two electrons, one with spin up, one with spin down The aufbau method can be used to draw the electron configuration. The electron config can be built by adding electrons to orbitals in order of increasing orbital energy 1. Count the total number of electrons in the atom. 2. Imagine the possible subshells in order of increasing energy. See diagram below 1. Begin drawing boxes and filling them in with electron arrows. One box with two arrows represents 2 electrons 2. Continue adding boxes with increasing energy 1. Group the boxes together according to the subshells 1. If you don't have enough electrons to fill a subshell, spread them out as evenly as possible among the orbitals...
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