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Chapter 2: Problem 28

Give an example of each of the following: (a) a monatomic cation, (b) a monatomic anion, (c) a polyatomic cation, (d) a polyatomic anion.

Short Answer

Expert verified
The examples for the given types of ions are: (a) Monatomic cation - Sodium ion \( Na^+ \), (b) Monatomic anion - Chloride ion \( Cl^- \), (c) Polyatomic cation - Ammonium ion \( NH_4^+ \), (d) Polyatomic anion - Sulfate ion \( SO_4^{2-} \).

Step by step solution

01

Monatomic Cation

Identify a monatomic cation. Such ions are single atoms that have lost an electron and therefore have a positive charge. An example is sodium ion \( Na^+ \), which is formed when a sodium atom loses one electron.
02

Monatomic Anion

Identify a monatomic anion. These ions are single atoms that have gained an electron and therefore bear a negative charge. An example is chloride ion \( Cl^- \), which is formed when a chlorine atom gains one electron.
03

Polyatomic Cation

Identify a polyatomic cation. These ions comprise of two or more atoms covalently bonded that act as a single ion, and carry a positive charge. An example is ammonium ion \( NH_4^+ \).
04

Polyatomic Anion

Identify a polyatomic anion. These ions consist of two or more atoms covalently bonded that act as a single ion and carry a negative charge. An example is sulfate ion \( SO_4^{2-} \).

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Most popular questions from this chapter

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