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"Periodic Trends Worksheet" that includes several questions about periodic trends in the periodic table. Since I can't view images directly, I’ll need you to provide the
text of the worksheet or describe the specific questions you'd like help with.
However, based on the title and typical content of such worksheets, here’s a general guide to solving common periodic trend problems:
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🔍 Common Periodic Trends:
1.
Atomic Radius
- Decreases across a period (left to right) due to increasing nuclear charge pulling electrons closer.
- Increases down a group due to additional electron shells.
2.
Ionization Energy
- Increases across a period (left to right).
- Decreases down a group.
3.
Electron Affinity
- Generally increases across a period (becomes more negative).
- Exceptions exist (e.g., noble gases, Group 15).
4.
Electronegativity
- Increases across a period.
- Decreases down a group.
- Fluorine is the most electronegative element.
5.
Metallic Character
- Decreases across a period.
- Increases down a group.
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🧩 Example Problem & Solution:
Question:
*Which element has a larger atomic radius: Na or K?*
Answer:
- Potassium (K) has a larger atomic radius than sodium (Na).
- Reason: K is below Na in Group 1, so it has an extra electron shell, making its atoms larger.
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✔ How to Approach the Worksheet:
1. Identify which trend is being asked (atomic radius, ionization energy, etc.).
2. Determine the position of the elements on the periodic table.
3. Apply the appropriate trend rule.
4. Justify your answer using periodic principles.
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questions from the worksheet, either by typing them out or describing them, and I’ll walk you through each one step-by-step with explanations!
Parent Tip: Review the logic above to help your child master the concept of worksheet periodic trends answer key.
