Answer: +1.
- A -1
- B 0
- C +1
- D +2
Correct answer: C. +1
Explanation: Formal charge = 5 - 0 - (8/2) = 5 - 4 = +1; nitrogen forms four bonds with no lone pair, carrying the positive charge of the ion.
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.
Read the full Chemical Bonding and Molecular Structure notes →