" It is impossible to determine simultaneously the exact position and exact momentum of an electron. " This statement is called

Step-by-step solution

The statement regarding the indeterminacy of simultaneous position and momentum measurements for an electron describes the Heisenberg Uncertainty Principle . Contrasting with other quantum mechanical rules: Pauli's exclusion principle specifies unique quantum numbers for electrons in an atom; Hund's rule governs orbital occupancy and electron spin; the Aufbau rule dictates the order of electron filling in atomic orbitals. The correct answer is D .