Can the exact location of an electron within an atom be determined? What can you know about an electron location?

The Heisenberg uncertainty principle states that the exact position and momentum of an electron cannot be simultaneously determined. This is because electrons simply don't have a definite position, and direction of motion, at the same time! ... We know the direction of motion.

Explanation:

Can we determine the exact location of an electron? No, since the electron is always in motion, it is impossible to tell the exact location. The best that scientists can do is determine the chance of finding an electron in a certain place within an atom.

the atomic mass is the bottom number on the element.

-steel jelly