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## Quantum nature of charge

The smallest charge that can exist is the charge of an electron. Therefore electric charge always exist as an integral multiple of electronic charge ($e=1.6×10_{−19}C$). This is also known as the quantum nature of the charge.

$⟹q=±ne$

where n = 0, 1, 2, 3 ...................

$⟹q=±ne$

where n = 0, 1, 2, 3 ...................

Find the charge in coulomb on $1gramion$ of $N_{3−}$.

On removing $2.9×10_{19}$ electrons from a metal sheet,then the charge on metal sheet is