Question
What are the two methods of representing electronic configuration of an atom?
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Answer
The two methods of representing electronic configuration of an atom are:
$i.$ Orbital notation $: ns^a \ np^b \ nd^c …..$
In the orbital notation method, a shell is represented by the principal quantum number $(n)$ followed by respective symbol of the subshell. The number of electrons occupying that subshell being written as superscript on right side of the symbol.
$ii.$ Orbital diagram:
In the orbital diagram method, each orbital in a subshell is represented by a box and the electrons represented by an arrow $(↑ $ for up spin and $↓$ for down spin$)$ are placed in the respective boxes. In this method, all the four quantum numbers of electron are accounted for.
Note: Consider two electrons in $3s$ orbital:
$i.$ Orbital notation $: ns^a \ np^b \ nd^c …..$
In the orbital notation method, a shell is represented by the principal quantum number $(n)$ followed by respective symbol of the subshell. The number of electrons occupying that subshell being written as superscript on right side of the symbol.
$ii.$ Orbital diagram:
In the orbital diagram method, each orbital in a subshell is represented by a box and the electrons represented by an arrow $(↑ $ for up spin and $↓$ for down spin$)$ are placed in the respective boxes. In this method, all the four quantum numbers of electron are accounted for.
Note: Consider two electrons in $3s$ orbital:
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