Ions and Formula Units
Explore the basics of ions, cations, anions, and how they form ionic compounds and formula units.
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Ions and Formula Units
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Read each question carefully and answer to the best of your ability. Good luck!
1. What is an ion?
An atom with a neutral charge
An atom that has gained or lost electrons
A molecule made of two or more atoms
A subatomic particle
2. What type of ion has a positive charge?
Anion
Cation
Neutral ion
Isotope
3. An atom that gains electrons becomes a negatively charged ion called an .
4. The chemical formula for sodium chloride is .
5. A is the smallest whole-number ratio of ions in an ionic compound.
6. Explain the difference between an atom and an ion.
7. Ionic compounds are formed between two nonmetals.
True
False
8. A cation is a positively charged ion.
True
False
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