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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to the ionic sizes of lanthanides as you move from La to Lu?
💡 Hint: Think about the nuclear charge affecting the ionic size.
Question 2
Easy
Define lanthanoid contraction.
💡 Hint: It involves changes in sizes across a group.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What phenomenon describes the decrease in ionic sizes of lanthanides?
- Ionic Expansion
- Lanthanoid Contraction
- Ionic Shielding
💡 Hint: It starts with the letter 'L' and involves size changes.
Question 2
True or False: Actinoid contraction is less significant than lanthanoid contraction.
- True
- False
💡 Hint: Consider the effects of electron shielding.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the ionic radii of La3+ and Lu3+, explain the chemical similarities and differences in their reactivity and bonding.
💡 Hint: Consider how size affects coordination in bonding scenarios.
Question 2
How might the similarities in ionic sizes between Zr and Hf lead to complications in their separation in industry?
💡 Hint: Think about the strategies used in separation based on unique ionic characteristics.
Challenge and get performance evaluation