What is the best reason for the observation that carbon can form four bonds and not two as expected from its electron configuration? *   a) Carbon is in main group 4 of the periodic table.   b) Carbon has four valence electrons in the n = 2 energy level.   c) An electron is transferred from the filled 2s orbital to an unoccupied 2p orbital.   d) The energy gap between the n = 1 and n = 2 is large and no further electrons can, therefore, be promoted from lower energy levels to facilitate more bonds.   e) All of the reasons given above explain the observation

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter3: Atomic Shells And Classical Models Of Chemical Bonding
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What is the best reason for the observation that carbon can form four bonds and not two as expected from its electron configuration? *
 
a) Carbon is in main group 4 of the periodic table.
 
b) Carbon has four valence electrons in the n = 2 energy level.
 
c) An electron is transferred from the filled 2s orbital to an unoccupied 2p orbital.
 
d) The energy gap between the n = 1 and n = 2 is large and no further electrons can, therefore, be promoted from lower energy levels to facilitate more bonds.
 
e) All of the reasons given above explain the observation
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