You may ask, why the charge of a single electron is not used?

None of the electrons even stay at a higher energy.

One way to deal with this is to find the charge of an electron.

It left the way open for the discovery of the electron.

This results in a movement of electrons, which carry the current or the heat.

First assume that the total number of electrons is 4n + 2.

Information about the state of the electrons at the input is then lost.

The density number of the free electrons is very large.

That is, the exact position of the electron can never be known.

In this case the leaving group gets a pair of electrons.