Ionic Compound Formula Writing
A Grade 11 science worksheet covering the principles and practice of writing chemical formulas for ionic compounds.
Includes
Standards
Ionic Compound Formula Writing
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Read each question carefully and provide the best answer. Show all your work for formula writing.
Ionic compounds are formed between a metal and a nonmetal, or a polyatomic ion. They involve the transfer of electrons, resulting in the formation of ions that attract each other.

1. An ionic bond typically forms between a and a .
2. When atoms lose electrons, they form positively charged ions called .
3. When atoms gain electrons, they form negatively charged ions called .
4. The overall charge of an ionic compound must always be .
5. Which of the following is NOT a characteristic of ionic compounds?
High melting points
Conduct electricity when molten or dissolved
Form discrete molecules
Are typically solid at room temperature
Write the chemical formula for the following ionic compounds:
6. Sodium Chloride
7. Magnesium Oxide
8. Aluminum Fluoride
9. Calcium Bromide
10. Potassium Sulfide
Write the chemical formula for the following ionic compounds containing polyatomic ions:
11. Sodium Sulfate
12. Calcium Carbonate
13. Ammonium Chloride
14. Aluminum Hydroxide
15. Iron(III) Nitrate