According to quantum theory, the electron in a particular quantum state of the hydrogen atom has
A) a definite position.
B) a definite velocity.
C) a definite energy.
D) All of the above.
E) None of the above.

Question

Quizplus · Accepted Answer

In quantum theory, an electron in a hydrogen atom has a definite energy when in a particular quantum state, but its position and velocity are not definite due to the Heisenberg Uncertainty Principle.

According to Quantum Theory, the Electron in a Particular Quantum