# Chapter 3 - Sections 3.1-3.12 - Exercises - Problems by Topic: 24a

One Ca atom. Two N atoms Four O atoms.

#### Work Step by Step

By inspection, $Ca(NO)_{2}$ has one Ca atom, two N atoms and four O atoms.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.