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NEET 2026
Exam
NEET
Year
2026
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

NEET 2026 · Chemistry · Chemical Bonding and Molecular Structure

The highest occupied molecular orbital for Ne _2 is

The highest occupied molecular orbital for Ne2_2 is

Options

  1. Aσ2p∗\sigma^*_{2p}
  2. Bπ2p\pi_{2p}
  3. Cσ2p\sigma_{2p}
  4. Dπ2p∗\pi^*_{2p}

Correct answer

A. σ2p∗\sigma^*_{2p}

Step-by-step solution

The atomic number of Ne is 10. The total number of electrons in Ne2_2 is 20. The molecular orbital electronic configuration of Ne2_2 is: σ1s2 σ∗1s2 σ2s2 σ∗2s2 σ2pz2 π2px2 π2py2 π∗2px2 π∗2py2 σ∗2pz2{\sigma_{1s}}^{2} \ {{\sigma^{*}}_{1s}}^{2} \ {\sigma_{2s}}^{2} \ {{\sigma^{*}}_{2s}}^{2} \ {\sigma_{2p_z}}^{2} \ {\pi_{2p_x}}^{2} \ {\pi_{2p_y}}^{2} \ {{\pi^{*}}_{2p_x}}^{2} \ {{\pi^{*}}_{2p_y}}^{2} \ {{\sigma^{*}}_{2p_z}}^{2} The highest occupied molecular orbital is σ2p∗\sigma^{*}_{2p}. Answer: σ2p∗\sigma^*_{2p}
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