Movement of Electrons

Let us try a small experiment which will show you that electrons are able to go from one atom to another atom and surround it . But it is also possible that the electron "jumps" from one atom to another atom which is not from the same material.

All you need is a ruler made out of plastic and a cotton cloth.

As you can see in this picture you just have to take the cotton cloth and rub it a few times with the ruler.

What now happens is , that the electrons of the soft cotton cloth "jumps" to the atom of the ruler and surround the atom core of "the other" material.

Before rubbing, the lineal had no charge (either positive, nor negative). Now the ruler has got a negative charge, because the electrons moved from the cotton cloth to the ruler.

You can see that when you put the ruler close to your nose.

If the ruler is close enough you will notice a strange feeling at the top of your nose. That is because the charge of the ruler has got a "electric force".

The ruler attracts the small hairs of your nose and that is what you feel.

Another small experiment can be also used at your home party.

If you want to place some balloons in your room and you don't want them to fly around, then you can do this:

If you carry a pullover , then just rub the balloon at your pullover (perhaps made out of cotton ?) a few times. What happens is that here in this case the electrons also moves from your pullover to the balloon and with this you have given the balloon a negative charge.

Now you can place that balloon at the ceiling and it will rest up there as long it has got this charge.

But before you place it at the ceiling, you can also hold it above your head. What you will see is, that your hair will be adducted to the balloon.

That's enough for now. I think you have understood the "jumping" electrons. Now let's return.

But another happening of your daily life has also to do with the movement of electrons. If you are interested you can take a little look.