JEE Mains · Chemistry · STD 11 - 2. structure of atom
The quantum number of four electrons are given below \(I. n = 4,l = 2,m_l = -2, m_s = -1/ 2\)
\(II. n = 3,l = 2, m_l = 1,m_s = +1/ 2\)
\(III. n = 4,l = 1, m_l = 0, m_s = +1/ 2\)
\(IV. n = 3,l = 1, m_l = 1; m_s = -1/ 2\)
The correct order of their increasing energies will be
- A \(I < III < II < IV\)
- B \(I < II < III < IV\)
- C \(IV < II < III < I\)
- D \(IV < III < II < I\)
Answer & Solution
Correct Answer
(C) \(IV < II < III < I\)
Step-by-step Solution
Detailed explanation
According to Aufbau principle, the energy sequence is \(3p < 3d < 4p < 4d\)
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