Question

How can an election be particle and a wave at the same time?

Answer 1

All masses have the properties of both waves and particles. The more massive the particle is, the harder it is to observe the wavelike properties. The theory that explains this behavior is called quantum mechanics. The mathematics is very hard to understand, but the theory is widely accepted because it agrees with experiment.

Answer 2

Can you explain more of the theory side? with the double slit experiment, photoelectic effect, compton effect, reflection, refraction, stuff like that?

Answer 3

Those are examples of one or the other type of behavior, but none by itself explains how matter behaves both ways.

You need to use quantum field theory, and that is too complicated to explain here. I am not an expert in it, anyway. There are many good books on the subject, at the graduate school level.

Answer 4

alright then, I'll check out some books. Thanks for your help.