AP Chemistry· difficulty 2/5
Hydrogen chloride is a polar diatomic molecule. The drawing shows H bonded to Cl, with the lone pairs on Cl indicated explicitly.
How many lone pairs of electrons are on the chlorine atom in HCl?
4
2
1
3
Explanation
Chlorine has 7 valence electrons; one is shared in the H-Cl bond, leaving 3 lone pairs (6 electrons).
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