Question

write the chemical formula for the ionic compound provided.

1. calcium fluoride
2. magnesium oxide
3. sodium nitride
4. potassium sulfide

write the name of the ionic compound for the chemical formula provided.

1. al₂o₃
2. nacl
3. bacl₂
4. cao
5. sro
6. ionic bonds are between __________ and ________. in these compounds, electrons are gained and lost. covalent bonds are between ________ and ________. in these compounds, electrons are __________.

Explanation:

Step1: Determine ions for calcium fluoride

Calcium forms a $Ca^{2 + }$ ion and fluorine forms a $F^{-}$ ion. To balance charges, we need 2 fluoride ions for 1 calcium ion.

Step2: Write formula for calcium fluoride

The chemical formula is $CaF_{2}$.

Step3: Determine ions for magnesium oxide

Magnesium forms a $Mg^{2+}$ ion and oxygen forms an $O^{2 - }$ ion. The ratio is 1:1 to balance charges.

Step4: Write formula for magnesium oxide

The chemical formula is $MgO$.

Step5: Determine ions for sodium nitride

Sodium forms a $Na^{+}$ ion and nitrogen forms an $N^{3 - }$ ion. We need 3 sodium ions for 1 nitride ion to balance charges.

Step6: Write formula for sodium nitride

The chemical formula is $Na_{3}N$.

Step7: Determine ions for potassium sulfide

Potassium forms a $K^{+}$ ion and sulfur forms an $S^{2 - }$ ion. We need 2 potassium ions for 1 sulfide ion to balance charges.

Step8: Write formula for potassium sulfide

The chemical formula is $K_{2}S$.

Step9: Name $Al_{2}O_{3}$

Aluminum is the cation ($Al^{3+}$) and oxygen is the anion ($O^{2 - }$). The name is aluminum oxide.

Step10: Name $NaCl$

Sodium is the cation ($Na^{+}$) and chlorine is the anion ($Cl^{-}$). The name is sodium chloride.

Step11: Name $BaCl_{2}$

Barium is the cation ($Ba^{2+}$) and chlorine is the anion ($Cl^{-}$). The name is barium chloride.

Step12: Name $CaO$

Calcium is the cation ($Ca^{2+}$) and oxygen is the anion ($O^{2 - }$). The name is calcium oxide.

Step13: Name $SrO$

Strontium is the cation ($Sr^{2+}$) and oxygen is the anion ($O^{2 - }$). The name is strontium oxide.

Step14: Fill in the blanks for ionic and covalent bonds

Ionic bonds are between metals and non - metals. In these compounds, electrons are gained and lost. Covalent bonds are between non - metals and non - metals. In these compounds, electrons are shared.

Answer:

1. $CaF_{2}$
2. $MgO$
3. $Na_{3}N$
4. $K_{2}S$
5. Aluminum oxide
6. Sodium chloride
7. Barium chloride
8. Calcium oxide
9. Strontium oxide
10. metals; non - metals; non - metals; non - metals; shared