Question

10 type the correct answer in each box. complete the chemical formula for each ionic compound. consult the periodic table to help you answer the question. magnesium nitride: mg □ n □ calcium chloride: cacl □

Explanation:

Step1: Determine Mg and N charges

Magnesium (Mg) is in group 2, so charge is \(+2\) (\(Mg^{2+}\)). Nitrogen (N) is in group 15, gains 3 electrons, charge \( - 3\) (\(N^{3-}\)). To balance charge, find LCM of 2 and 3, which is 6. So Mg: \(\frac{6}{2}=3\), N: \(\frac{6}{3}=2\). So \(Mg_3N_2\).

Step2: Determine Ca and Cl charges

Calcium (Ca) is group 2, charge \(+2\) (\(Ca^{2+}\)). Chlorine (Cl) is group 17, charge \( - 1\) (\(Cl^-\)). To balance \(+2\) with \( - 1\), need 2 \(Cl^-\). So \(CaCl_2\).

Answer:

magnesium nitride: Mg \(\boldsymbol{3}\) N \(\boldsymbol{2}\)
calcium chloride: CaCl \(\boldsymbol{2}\)