The component elements for four binary ionic compounds are shown with different colors on the indicated periodic table.

What is the likely chemical formula for the following?

a. Red compound

b. Blue compound

c. Yellow compound

d. Green compound

Write the chemical formula for an ionic compound formed from the following ions.

a. $\text{Na}^{+}$ and $\text{S}^{2-}$

b. $\text{Ca}^{2+}$ and $\text{I}^{-}$

c. $\text{Li}^{+}$ and $\text{N}^{3-}$

d. $\text{Al}^{3+}$ and $\text{Br}^{-}$

Write the chemical formula for an ionic compound formed from $\text{S}^{2-}$ ions and each of the following ions.

a. $\text{Mg}^{2+}$

b. $\text{Be}^{2+}$

c. $\text{Li}^{+}$

d. $\text{Al}^{3+}$

Give the periodic-table group number and the number of valence electrons present for each of the following representative elements.

a. $_{12}$Mg

b. $_{19}$K

c. $_{15}$P

d. $_{35}$Br

Write the chemical formula for an ionic compound formed from $\text{F}^{-}$ ions and each of the following ions.

a. $\text{Mg}^{2+}$

b. $\text{Be}^{2+}$

c. $\text{Li}^{+}$

d. $\text{Al}^{3+}$

The following Lewis symbols for ions have the charges omitted. Determine the number of extra electrons that each structure contains, and give the proper charge for each ion.

a. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{P}}}\hspace{0.05cm}\colon\right]}$

b. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{O}}}\hspace{0.05cm}\colon\right]}$

c. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{Br}}}\hspace{0.05cm}\colon\right]}$

d. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{I}}}\hspace{0.05cm}\colon\right]}$

Write the chemical formula for an ionic compound formed from $\text{K}^{+}$ ions and each of the following ions.

a. $\text{Cl}^{-}$

b. $\text{Br}^{-}$

c. $\text{N}^{3-}$

d. $\text{O}^{2-}$

The following Lewis symbols for ions have the charges omitted. Determine the number of extra electrons that each structure contains, and give the proper charge for each ion.

a. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{S}}}\hspace{0.05cm}\colon\right]}$

b. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{F}}}\hspace{0.05cm}\colon\right]}$

c. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{N}}}\hspace{0.05cm}\colon\right]}$

d. $\large{\left[\colon\hspace{-0.05 cm}\underset{\large{\sdot\sdot}}{\overset{\large{\sdot\sdot}}{\mathrm{Se}}}\hspace{0.05cm}\colon\right]}$

Write the chemical formula for an ionic compound formed from $\text{Ba}^{2+}$ ions and each of the following ions.

a. $\text{Cl}^{-}$

b. $\text{Br}^{-}$

c. $\text{N}^{3-}$

d. $\text{O}^{2-}$

Using Lewis structures, show how ionic compounds are formed by atoms of

a. Na and F

b. Li and S

c. Be and S

d. P and K

Using Lewis structures, show how ionic compounds are formed by atoms of

a. Be and O

b. Mg and S

c. K and N

d. F and Ca

How many valence electrons are present in each of the following ions?

a. $\text{O}^{2−}$

b. $\text{S}^{2−}$

c. $\text{Mg}^{2+}$

d. $\text{Be}^{2+}$

How many valence electrons are present in each of the following ions?

a. $\text{N}^{3−}$

b. $\text{P}^{3−}$

c. $\text{Al}^{3+}$

d. $\text{Li}^{+}$

Write the electron configuration of the following.

a. An oxygen atom b. An oxygen ion