Which of the sequences given below shows the | vedclass

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(C) The energy of an orbital is determined by the $(n + \ell)$ rule. For orbitals with the same $(n + \ell)$ value,the orbital with the lower $n$ valu

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$3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p$

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(C) The energy of an orbital is determined by the $(n + \ell)$ rule. For orbitals with the same $(n + \ell)$ value,the orbital with the lower $n$ value has lower energy. Calculating $(n + \ell)$ values: $3s: 3 + 0 = 3$ $3p: 3 + 1 = 4$ $4s: 4 + 0 = 4$ $3d: 3 + 2 = 5$ $4p: 4 + 1 = 5$ $5s: 5 + 0 = 5$ $4d: 4 + 2 = 6$ $5p: 5 + 1 = 6$ Comparing these,the correct increasing order is $3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p$.

Which of the sequences given below shows the correct increasing order of energy?

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