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'''Principle quantum number''' - corresponds to the main [[electron shell]] in which the electron resides. Can have the value n=1, 2, 3..., corresponding to shells with increasing amounts of energy. However, in stable atoms, this tends to be less than or equal to 7
'''Principle quantum number''' - corresponds to the main [[electron shell]] in which the electron resides. Can have the value n=1, 2, 3..., corresponding to shells with increasing amounts of energy. However, in stable atoms, this tends to be less than or equal to 7
<br>'''Azimuthal quantum number''' - corresponds to the [[electron subshell]] of the electron. Can have the number l=0, 1, 2, 3 up to n-1. It is also sometimes called the "angular momentum quantum number", due to its relationship with [[angular momentum]]
<br>'''Azimuthal quantum number''' - corresponds to the [[electron subshell]] of the electron. Can have the number <i>l</i>=0, 1, 2, 3 up to n-1. It is also sometimes called the "angular momentum quantum number", due to its relationship with [[angular momentum]]
<br>'''Magnetic quantum number''' - corresponds to the [[orbital]] of the electron, the orbital is the different orientations of the electron subshell around the atom. It is normally denoted by m and varies from -l to l, taking integer values, i.e. -1, -l + 1,..., -1, 0, 1, ..., l-1, l
<br>'''Magnetic quantum number''' - corresponds to the [[orbital]] of the electron, the orbital is the different orientations of the electron subshell around the atom. It is normally denoted by m and varies from -<i>l</i> to <i>l</i>, taking integer values, i.e. -<i>l</i>, -<i>l</i> + 1,..., -1, 0, 1, ..., <i>l</i>-1, <i>l</i>
<br>'''Spin quantum number''' - corresponds to the spin of the electron, can have the value 1/2 or -1/2, indicating that each orbital of an atom can only hold 2 electrons. This is an example of a quantum number that takes half-integer values.
<br>'''Spin quantum number''' - corresponds to the spin of the electron, can have the value 1/2 or -1/2, indicating that each orbital of an atom can only hold 2 electrons. This is an example of a quantum number that takes half-integer values.