An electron having following set of values lies in: n = 4, l= 0, m = 0 & s = -1/2
Correct answer: A. 4s
- A. 4s
- B. 4p
- C. 5s
- D. 5p
Explanation
n equal to 4 gives the fourth shell and l equal to 0 gives an s subshell, so the electron is in 4s, with m equal to 0 the only value allowed for an s orbital. A p subshell would need l equal to 1, and 5s or 5p would need n equal to 5.
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Quantum numbers describe an electron's energy level, subshell, orbital orientation and spin. You examine the principal, azimuthal, magnetic and spin quantum numbers, their allowed values, orbital capacity and how they determine electronic configurations and distinguish electrons within an atom.
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