The total number of electrons allowed in a ℓ = 1 sublevel is

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The total number of electrons allowed in a ℓ = 1 sublevel is

An l = 1 sublevel is the p sublevel. It contains 2l+1 = 3 orbitals (m_l = -1, 0, +1). Each orbital can hold 2 electrons with opposite spins due to Pauli exclusion. So the total number of electrons in this sublevel is 3 × 2 = 6. In general, a sublevel with azimuthal quantum number l can hold 2(2l+1) electrons, which for l = 1 gives 6.

An l = 1 sublevel is the p sublevel. It contains 2l+1 = 3 orbitals (m_l = -1, 0, +1). Each orbital can hold 2 electrons with opposite spins due to Pauli exclusion. So the total number of electrons in this sublevel is 3 × 2 = 6. In general, a sublevel with azimuthal quantum number l can hold 2(2l+1) electrons, which for l = 1 gives 6.

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