Chapter 2, Problem 57E

(a)

Interpretation Introduction

To determine: The number of protons and electrons in $N{i}^{2+}$.

(b)

Interpretation Introduction

To determine: The number of protons and electrons in $S^{2-}$.

(c)

Interpretation Introduction

To determine: The number of protons and electrons in $B{r}^{-}$.

(d)

Interpretation Introduction

To determine: The number of protons and electrons in $C{r}^{3+}$.