type the correct answer in each box. complete the chemical formula for each ionic compound. consult the…

Explanation:

Step1: Determine magnesium ion charge

Magnesium (Mg) is in group 2 of the periodic - table. It loses 2 electrons to form a $Mg^{2 + }$ ion.

Step2: Determine nitride ion charge

Nitrogen (N) is in group 15 of the periodic - table. It gains 3 electrons to form a $N^{3 - }$ ion.

Step3: Balance charges for magnesium nitride

To balance the charges in magnesium nitride ($Mg_xN_y$), we need to find the least - common multiple of 2 and 3, which is 6. So we need 3 $Mg^{2 + }$ ions and 2 $N^{3 - }$ ions. The formula is $Mg_3N_2$.

Step4: Determine calcium ion charge

Calcium (Ca) is in group 2 of the periodic - table. It loses 2 electrons to form a $Ca^{2 + }$ ion.

Step5: Determine chloride ion charge

Chlorine (Cl) is in group 17 of the periodic - table. It gains 1 electron to form a $Cl^-$ ion.

Step6: Balance charges for calcium chloride

To balance the 2 + charge of calcium, we need 2 chloride ions. The formula is $CaCl_2$.

Answer:

magnesium nitride: $Mg_3N_2$ calcium chloride: $CaCl_2$