The correct answer is D. Pauli’s exclusion principle.
The Pauli exclusion principle is a quantum mechanical principle that states that two or more identical fermions (particles with half-integer spin) cannot occupy the same quantum state simultaneously. This means that no two electrons in an atom can have the same set of four quantum numbers: principal quantum number (n), angular momentum quantum number (l), magnetic quantum number (m), and spin quantum number (s).
The Pauli exclusion principle is a fundamental principle of quantum mechanics and has important consequences for the structure of matter. For example, it is responsible for the stability of atoms and molecules. It also plays a role in the formation of stars and other astrophysical objects.
Newton’s law is a law of physics that states that a body remains at rest or in uniform motion in a straight line unless acted upon by an external force. Bohr’s law is a model of the atom that states that electrons orbit the nucleus in fixed orbits. The Aufbau principle is a principle in chemistry that states that electrons fill the lowest energy orbitals available before filling higher energy orbitals.
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