📚 Learning Guide
Electronegativity
medium

Arrange the following steps in the correct order to explain the concept of electronegativity and its impact on chemical bonding: A) Electronegativity values determine the polarity of bonds, B) Atoms with higher electronegativity attract shared electrons more strongly, C) The difference in electronegativity values between two atoms can predict bond type, D) Electronegativity trends can be observed across the periodic table.

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Learning Path
Learning Path

Question & Answer
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3
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Choose the Best Answer

A

B → D → C → A

B

D → B → C → A

C

A → C → D → B

D

C → A → B → D

Understanding the Answer

Let's break down why this is correct

Answer

First, electronegativity trends can be observed across the periodic table, showing how atoms’ tendencies to pull electrons change with position. Then, atoms with higher electronegativity attract shared electrons more strongly, creating unequal sharing. This unequal sharing means electronegativity values determine the polarity of bonds, making one side of the bond more negative. Finally, the difference in electronegativity values between two atoms can predict bond type, such as ionic or covalent.

Detailed Explanation

Step B shows the core idea: a more electronegative atom pulls the shared electron pair closer, which is the basis for all electronegativity reasoning. Other options are incorrect because Misconception: thinking the bond polarity comes first; Misconception: predicting bond type before understanding the pull strength.

Key Concepts

Electronegativity
Bond Polarity
Periodic Trends
Topic

Electronegativity

Difficulty

medium level question

Cognitive Level

understand

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