Answer: Two pairs (4 electrons).
- A Two pairs (4 electrons)
- B One pair according to conventional understanding
- C Three pairs in routine practice
- D Zero overall in most cases
Correct answer: A. Two pairs (4 electrons)
Explanation: A double bond consists of two shared electron pairs (4 electrons total).
VSEPR theory predicts molecular shape from the number of bonding and lone electron pairs around the central atom.
Concept context
Understand how atoms join to form molecules. Covers ionic and covalent bonding, VSEPR theory, hybridization (sp, sp², sp³), molecular orbital theory, bond polarity, and intermolecular forces like hydrogen bonding.
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