Question

Compare :
sodium atom and sodium ion

Answer 1

$\text{Sodium atom}$	$\text{Sodium ion}$
Sodium atom is electrically neutral.	Sodium-ion is positively charged.
In sodium atom, there are $11$ proton and $11$ electrons, i.e. an equal number of protons and electrons.	In sodium ion, there are $11$ protons but $10$ electrons.
The sodium atom has only one electron in its valence shell.	Sodium-ion has $8$ electrons in its valence shell.
Size of a sodium atom is larger than a sodium ion.	Size of a sodium ion is smaller than a sodium atom.