Question Detail

PHY 104 PHY 104 Past Questions Objective Question

Question

The Heisenberg Principle states that:
Options
A no two electrons in the same atom can have the same set of four quantum numbers.
B two atoms of the same element must have the same number of protons.
C it is impossible to determine accurately both the position and momentum of an electron simultaneously.
Correct Answer
D electrons of atoms in their ground states enter energetically equivalent sets of orbitals singly before they pair up in any orbital of the set.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The Heisenberg Uncertainty Principle is a fundamental principle of quantum mechanics. It states that it is impossible to precisely determine both the position and momentum of a particle (such as an electron) simultaneously. The more accurately one property is measured, the less accurately the other can be known.Option A describes the Pauli Exclusion Principle.Option B describes the definition of an element.Option D describes Hund's Rule.

Hint

The Heisenberg Uncertainty Principle highlights a fundamental limit to the precision with which certain pairs of physical properties, such as position and momentum, of a particle can be simultaneously known.

Question Info