Answer
a) $1Ca^{2+}$ and $2 F^{-}$
b) $1Al^{3+}$ and $3 Br^{-}$
c) $2Li^{+}$ and $1 O^{2-}$
d) $2Al^{3+}$ and $3 S^{2-}$
e) $3K^{+}$ and $1 N^{3-}$
Work Step by Step
a) $1Ca^{2+}$ and $2 F^{-}$
b) $1Al^{3+}$ and $3 Br^{-}$
c) $2Li^{+}$ and $1 O^{2-}$
d) $2Al^{3+}$ and $3 S^{2-}$
e) $3K^{+}$ and $1 N^{3-}$
