Nitric Oxide has valence electrons?
Correct answer: C. 11
- A. 10
- B. 13
- C. 11
- D. 12
Explanation
Nitrogen has configuration 1s2 2s2 2p3. ( 5 valence electrons) Oxygen has configuration 1s2 2s2 2p4. ( 6 valence electrons) Thus, 5+6 = 11 electrons. Hence, the correct answer is option C.
This question appeared on the HEC Phase I 2017 paper, which you can sit online with every answer explained.
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Valence shell electron pair repulsion theory predicts molecular shape by arranging bonding pairs and lone pairs around a central atom to minimize repulsion. Questions cover linear, trigonal planar, tetrahedral, trigonal bipyramidal and octahedral electron geometries, bond angles and distortions caused by lone pairs. Electron geometry is not always the same as molecular shape.
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