The dielectric film never lets any individual electrons all the way through it.

At higher temperatures, individual electrons jiggle faster, but in a less organized fashion.

The individual electrons, however, are still moving around.

This makes it hard to plot a full cycle for any individual electron.

In a physics class that has not reached quantum theory, individual electrons are treated the same as larger charges to make the work easier.

Anomalous results may occur in the case of individual electrons.

There are also special semiconductor devices (on a chip) that can trap and look at individual electrons.

This makes the resulting pattern on the screen the same as if each individual electron had passed through both slits.

If you want to outwit them, you've got to be able to deal with individual electrons.

Today laboratory instruments are capable of containing and observing individual electrons.