Ionic Bonding and Ionic Compounds Multiple Choice Questions and Answers

21. Oxygen forms an ion with a charge of

1. -2
2. 2+
3. -3
4. 3+

22. Predict the charge of the most stable ion of P

1. 2+
2. -3
3. 3+
4. -1

23. Predict the charge of the most stable ion of S

1. 3+
2. -1
3. -2
4. 2+

24. Predict the formula of the ionic compound that forms from aluminum and oxygen.

1. AlO
2. Al₃O₂
3. Al₂O₃
4. AlO₂

25. Predict the formula of the ionic compound that forms from Calcium and Fluorine.

1. CaF₂
2. C₂F
3. Ca₂ F₂
4. Ca₂F₃

26. Predict the formula of the ionic compound that forms from magnesium and fluorine.

1. Mg₂F₃
2. MgF
3. MgF₂
4. Mg₃F₂

27. Predict the formula of the ionic compound that forms from magnesium and oxygen.

1. Mg₂O
2. MgO
3. MgO₂
4. Mg₂O₂

28. Sodium forms an ion with a charge of

1. 1+
2. -1
3. 2+
4. -2

29. Sulfur forms an ion with a charge of

1. 2+
2. -2
3. 3+
4. -6

30. The charge on the iron ion in the salt Fe₂O₃ is

1. 1
2. 2
3. 3
4. -5