Chapter 6 - Ionic and Molecular Compounds - 6.1 Ions: Transfer of Electrons - Questions and Problems - Page 189: 6.7

a. $Cl^-$ b. $Cs^+$ c. $N^{3-}$ d, $Ra^{2+}$

1. Identify the symbol for each element. a. Cl b. Cs c. N d. Ra 2. Identify the charge of each ion. a. Since $Cl$ is from Group (7A), the charge is $-1$. b. Since $Cs$ is from Group(1A), the charge is $+1$ c. Since $N$ is from Group (5A), the charge is $-3$ d. Since $Ra$ is from Group (2A), the charge is $+2$