Practice Shielding (screening) Effect (2.7.1) - Unit 2: Atomic Structure
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Shielding (Screening) Effect

Practice - Shielding (Screening) Effect

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Practice Questions

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Question 1 Easy

Define the shielding effect.

💡 Hint: Think about what happens when inner electrons are present.

Question 2 Easy

What is the formula for calculating effective nuclear charge?

💡 Hint: What do you subtract from the nuclear charge?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the shielding effect describe?

A decrease in nuclear charge felt by outer electrons due to inner electrons.
An increase in nuclear charge for all electrons.
The phenomenon of electron decay.

💡 Hint: Think about how electrons interact with the nucleus.

Question 2

True or False: The effective nuclear charge is always equal to the actual nuclear charge.

True
False

💡 Hint: Recall what shielding does to the charge measurement.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given an atom like calcium (Z = 20), apply Slater's rules to calculate the effective nuclear charge felt by a 4s electron. What implications can this have for its reactivity?

💡 Hint: Break down the shielding contributions systematically.

Challenge 2 Hard

Analyze the effect of shielding on ionization energy trends in the periodic table across periods and down groups for sodium and potassium.

💡 Hint: Reflect on how many inner electrons are present in sodium vs potassium.

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