Question:
Show diagramatically the electronic distribution in a sodium atom and a sodium ion and also give their atomic number.
Solution:
The atomic number of sodium (Na) is 11 . The electronic distribution in the atom is $K(2) L(8)$ and $L(1)$.
Sodium
ion (Na^t) is formed by removal of one electron from the atom. Its electronic distribution is $K(2)$ and $L(8)$.
This means that $N a^{+}$ion has the elecronic configuration of Ne atom which is inert gas atom. The electronic
distribution of the atom and ion are shown as follows:
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