CHEM 219 EXAM 1 ALL QUESTIONS WITH COMPLETE SOLUTION

CHEM 219 EXAM 1 ALL QUESTIONS WITH COMPLETE SOLUTION
Question :On a piece of scratch paper, write out the Lewis
Dot Diagram for each of the indicated elements and
determine the following for each:
a) The number of Lone Pairs the atom possesses in its
valence shell.b) The number of Unpaired Electrons the
atom possesses in its valence shell.c) The number of
bonds the atom will form.
Oxygen
Carbon
Hydrogen
Nitrogen
Correct answer:Oxygen - a) 2 b) 2 c) 2
Carbon - a) 0 b) 4 c) 4
Hydrogen- a) 0 b) 1 c) 1
Nitrogen - a) 1 b) 3 c) 3

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