Electron Position and Momentum Limits

Heisenberg’s uncertainty principle sets a limit on how precisely we can know an electron’s position and momentum at the same time. Momentum is the motion of a particle, and the two measurements affect each other. If the momentum is known more accurately, the position becomes less certain, and the reverse is also true.

An electron is a subatomic particle with mass, m. But it also behaves as a wave, with velocity v, as demonstrated by the de Broglie relation. So, an electron has both wave- and particle-like characteristics.

Unfortunately, it is not possible to witness the electron being both a particle, with a defined location, and a ...