Problem: Caffeine is the active ingredient in coffee, tea, and some carbonated beverages.a) Add lone pairs, as needed, to the structure of caffeine.b) Indicate the hybridization of the specified atoms. Be sure to consider any lone pairs you added in part a.

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We are asked to add lone pairs, as needed, to the structure of Caffeine and indicate the hybridization of the specified atoms


The number of electrons that the valence shell of each 2nd-row element prefers to “own” is determined by its group number on the periodic table. This will determine how many bonds it wants to have in its most stable state.



The hybridization of the atom can be determined by using the table below: 


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Problem Details

Caffeine is the active ingredient in coffee, tea, and some carbonated beverages.

a) Add lone pairs, as needed, to the structure of caffeine.

b) Indicate the hybridization of the specified atoms. Be sure to consider any lone pairs you added in part a.