Ion Formation: Grade 11 Chemistry
This worksheet covers the fundamental concepts of ion formation, including valence electrons, oxidation states, and the octet rule.
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Ion Formation: Grade 11 Chemistry
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Read each question carefully and provide your best answer. Show all your work for calculations.
1. What is the primary driving force for atoms to form ions?
To achieve a full outer electron shell, like noble gases.
To increase their atomic mass.
To become more reactive.
To decrease their electronegativity.
2. Which of the following elements is most likely to form a cation?
Chlorine (Cl)
Oxygen (O)
Sodium (Na)
Neon (Ne)
3. An atom that loses one or more electrons forms a positively charged ion called a .
4. An atom that gains one or more electrons forms a negatively charged ion called an .
5. The number of electrons in the outermost shell of an atom is known as its electrons.
6. Explain the octet rule and how it applies to ion formation.
7. Describe the difference between an ionic bond and a covalent bond.
8. Metals typically gain electrons to form anions.
True
False
9. Noble gases readily form ions because they have unstable electron configurations.
True
False
Match the term with its definition.
10. Cation
a. Negatively charged ion
11. Anion
b. Positively charged ion
12. Valence electrons
c. Electrons in the outermost shell
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