Drawing a box diagram of the electron configuration of an atom

Drawing a box diagram of the electron configuration of an atom

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Drawing a box diagram of the electron configuration of an atom Problem: Draw the electron configuration for a neutral atom of nitrogen The electron configuration is the arrangement of electrons. Specifically, it's a set of quantum states to which an electron has been assigned. A box diagram is a way of describing the electron configuration: Each orbital is represented by a box. Orbitals in the same subshell are grouped together and given one label. o Above see the three orbitals in the 2p subshell that are grouped together Each electron is represented by a half-headed arrow. o Above there are 9 arrows and 9 electrons in a neutral fluorine atom Each electron arrow can point up or down, depending on the spin angular momentum number, m s of the state the electron is in o Up is +1/2, down is -1/2 Very important: the Pauli Principle tells us that no two electrons can be in the same
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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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Drawing a box diagram of the electron configuration of an atom

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