The electronic configurations of molecules change when the number of electrons is ________(a) 10(b) 20(c) 17(d) 14This question was posed to me in class test.The query is from Bonding in Some Homonuclear Diatomic Molecules in chapter Chemical Bonding and Molecular Structure of Chemistry – Class 11

The electronic configurations of molecules change when the number of e

1.	The electronic configurations of molecules change when the number of electrons is ________(a) 10(b) 20(c) 17(d) 14This question was posed to me in class test.The query is from Bonding in Some Homonuclear Diatomic Molecules in chapter Chemical Bonding and Molecular Structure of Chemistry – Class 11
Answer» Right answer is (d) 14 For explanation: The ELECTRONIC CONFIGURATION below number of ELECTRONS= 14, i.e. number of electrons = 12 is σ1s^2σ1s^2σ2s^2 σ2s^2π2px^2π2y^2but after 14, TAKE number of electrons = 16 is σ1s^2σ1s^2σ2s^2σ2s^22pz^2π2px^2π2y^2π2px^1π2py^1 So the change COMES near 2pz orbital’s place.

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