What is the trend in electronegativity as you move down a group in the periodic

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Question: What is the trend in electronegativity as you move down a group in the periodic table?

Options:

Correct Answer: Decreases

Solution:

Electronegativity decreases down a group due to increased atomic size and shielding effect.

What is the trend in electronegativity as you move down a group in the periodic table?

What is the trend in electronegativity as you move down a group in the periodic table?

Step 1: Understand what electronegativity is. It is a measure of how strongly an atom attracts electrons in a bond.
Step 2: Look at the periodic table. A group is a column of elements.
Step 3: Notice that as you move down a group, the atoms get larger. This means they have more electron shells.
Step 4: Realize that with more electron shells, the outermost electrons are farther from the nucleus.
Step 5: Understand the shielding effect. Inner electrons block the attraction between the nucleus and the outermost electrons.
Step 6: Combine these ideas: larger size and shielding mean that the nucleus has less pull on the outermost electrons.
Step 7: Conclude that because of this reduced attraction, electronegativity decreases as you move down a group.

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