• Brainly User
Because it acquires an electron so it's radius increases.
the ion is present inside the atom then how ions size is increased
an e- is added 2 it
actually im soo poor in chemistry
its ok :-)

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Chlorine is a highly negative ion.

When chlorine atom accepts an electron the repulsion between the electrons increases (Like charges(-) repels each other).

As all electrons repel the size of the ion is found to be increased than that of the original atom.

As number of atoms increases the repulsion increases and so the size also increases.