The formula for calculating electron in subshells or sub energy levels is
Correct answer: C. 2(2l+1)
- A. 2l+1
- B. 2(l+1)
- C. 2(2l+1)
- D. 2(2l-1)
Explanation
The correct formula for calculating the maximum number of electrons in a subshell is 2(2l + 1). This formula considers that each orbital in a subshell can hold two electrons. The value 2l + 1 gives the number of orbitals based on the azimuthal quantum number l, and multiplying by 2 gives the electron capacity. Option A 2l + 1 only calculates the number of orbitals, not electrons. Option B 2(l+1) misrepresents the orbital calculation and thus the electron count. Option D 2(2l-1) incorrectly reduces the orbital count, leading to an incorrect electron capacity calculation.
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About Quantum Numbers
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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