"In an orbital of an atom, no two electrons can have the same set of four quantum numbers; at least one quantum number must be different." This statement is:
Correct answer: B. Pauli's exclusion principle
- A. Aufbau principle
- B. Pauli's exclusion principle
- C. Hund's rule
- D. Wissewser rule
- E. Magnetic quantum number
Explanation
Pauli's exclusion principle states that no two fermions (such as electrons) can occupy the same quantum state simultaneously within an atom. This principle explains why electrons in an atom fill different orbitals and have distinct quantum numbers.
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About Atomic Structure
Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.
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