Cations: Understanding Positive Ions
This worksheet explores the formation, properties, and significance of cations in chemistry at a Grade 12 level, covering topics such as electron configuration, ionization energy, and chemical bonding.
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Cations: Understanding Positive Ions
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Read each question carefully and provide your best answer. Show all work where applicable.
1. Which of the following elements is most likely to form a cation?
Chlorine (Cl)
Oxygen (O)
Sodium (Na)
Neon (Ne)
2. What is the electron configuration of a Mg²⁺ ion?
[Ne] 3s²
[Ne]
[Ar]
[Mg]
3. Cations are formed when an atom one or more electrons, resulting in a net charge.
4. The energy required to remove an electron from a gaseous atom is called the energy.
5. Explain why metals tend to form cations and nonmetals tend to form anions.
6. Describe the octet rule and how it relates to cation formation.
7. The radius of a cation is generally smaller than its parent atom.
True
False
8. All transition metals form only one type of cation.
True
False
Match the cation with its correct charge.
9. Lithium
a. +2
10. Aluminum
b. +1
11. Calcium
c. +3
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