Textbook Problem

trong>Exercise 12.5 Predict the arrangement of electron pairs around the central atom. Then sketch and name the molecular structure for each of the following molecules ions

msp;  $\begin{array}{l}\text{a}.{\text{ NH}}_{\text{4}}{}^{+} \text{d}.{\text{ H}}_{\text{2}}\text{S} \\ \text{b}.{\text{ SO}}_{\text{4}}{}^{\text{2}-} \text{e}.{\text{ ClO}}_{\text{3}}\\ \text{c}.{\text{ NF}}_{\text{3}} \text{f}.{\text{ BeF}}^{\text{2}}\end{array}$