An electron in an atom is completely described by its:
Correct answer: C. Four quantum numbers
- A. 2 quantum numbers
- B. Only one quantum number
- C. Four quantum numbers
- D. 3 quantum numbers
Explanation
We have four quantum numbers, and all four of them are needed to completely describe an electron. They are the principle quantum number, the azimuthal quantum number, the magnetic quantum number, and the spin quantum number.Hence, option C is the correct option.
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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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