What are Electrons?

The electrons of an atom represent the energy levels, and there are usually as many protons as there are electrons. Understand how each level carries a prescribed number of electrons with important facts from a science teacher in this free video on fundamental physics.

About the Author

Fiona Finke is a science teacher who likes to share her knowledge, because she feels that learning shouldn't stop once you leave the classroom. Science is everywhere, and Finke likes to explain how a better understanding of the universe helps us understand our daily lives.