Ionic Molecules (PLS HELP)

Question

Give the formula for the Ionic compound that would form from combining the following atoms.

1.) Mg, O

2.) B, Te

3.) K,C

4.) C,P

5.) Al, O

6.) Li, F

7.) Ca, B

8.) Sr, I

9.) Ga, S

10.) Na, Po

Answer 1

You can use the charges of each element to determine their compounds. For example, Mg is in the 2nd column of the periodic table, so it has a charge of 2+; oxygen is in the 6th/16th column, so it has a charge of 2–. You "swap and drop" the charges to become the subscript for the other element, so you get Mg₂O₂. However, you must simplify this to the least amount of atoms while maintaining the ratio, so your final answer is MgO.

1) MgO

2) B₂Te₃

3) K₄C

4) P₄C₃

5) Al₂O₃

6) LiF

7) CaB₆

1. Boron has special binding properties when it reacts with another cation

8) SrI₂

9) Ga₂S₃

10) Na₂Po