As a result of the wave nature of the electron, the position of the electron can never be precisely known. Whenever it is attempted to be measured, knowledge of the electron's [[velocity]] is lost. Hence, there is an inherent uncertainty that prevents precisely measuring both the position and the momentum simultaneously. This is known as the [[Heisenberg Uncertainty Principle]].
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As a result of the wave nature of a particle, the position of the particle can never be precisely known, given precise knowledge of its velocity. Whenever it is attempted to be measured, knowledge of the electron's [[velocity]] is lost. The inverse also applies. Hence, there is an inherent uncertainty that prevents precisely measuring both the position and the momentum simultaneously. This is known as the [[Heisenberg Uncertainty Principle]].