In a Lewis structure a dash is drawn between two atoms. That dash stands for:
AOne shared pair
BNo shared pairs
CThree shared pairs
DTwo shared pairs
Answer & Solution
Correct answer: A. One shared pair
1. A shared pair of electrons can be shown as two dots or as a line.
2. One line therefore stands for exactly one pair.
3. A single shared pair like this is a single bond.
_Source: OpenStax Chemistry 2e, Chapter 7, Chemical Bonding and Molecular Geometry._
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