Chapter 7: Problem 3

What is a positive ion? A negative ion?

Short Answer

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Question: Define positive and negative ions, and provide examples of each. Answer: Positive ions, also known as cations, are formed when an atom or molecule loses one or more electrons, resulting in a net positive charge. Examples of cations include sodium (Na+), potassium (K+), and calcium (Ca2+). Negative ions, also known as anions, are formed when an atom or molecule gains one or more electrons, resulting in a net negative charge. Examples of anions include chloride (Cl-), sulfate (SO4 2-), and nitrate (NO3 -).

Step by step solution

Define ion

An ion is an atom or molecule that has an unequal number of protons (positive charge) and electrons (negative charge). It gains or loses electrons to achieve a stable electron configuration, resulting in a net electrical charge.

Explain positive ions (cations)

A positive ion, also known as a cation, is formed when an atom or molecule loses one or more electrons, leaving it with more protons than electrons. This results in a net positive charge. Common examples of cations include sodium (Na+), potassium (K+), and calcium (Ca2+).

Explain negative ions (anions)

A negative ion, also known as an anion, is formed when an atom or molecule gains one or more electrons, leaving it with more electrons than protons. This results in a net negative charge. Common examples of anions include chloride (Cl-), sulfate (SO4 2-), and nitrate (NO3 -).

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What is a positive ion? A negative ion?

Short Answer

Step by step solution

Define ion

Explain positive ions (cations)

Explain negative ions (anions)

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