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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Describe the trend in atomic size across a period.
💡 Hint: Think of the number of protons and their pull on electrons.
Question 2
Easy
What is lanthanide contraction?
💡 Hint: Consider how the f-orbitals affect size.
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 happens to atomic radius across a period?
- Increases
- Decreases
- Stays the same
💡 Hint: Remember the trend for periodic atomic radii.
Question 2
True or False: Ionic sizes of anions are always smaller than their parent atoms.
- True
- False
💡 Hint: Think about electron relationships when gaining electrons.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Determine and compare the atomic size of elements Scandium (Sc) and Copper (Cu). What factors contribute to the differences you observe?
💡 Hint: Consider their positions in the periodic table.
Question 2
In a group of d-block elements, why does Gold (Au) have a smaller atomic radius compared to Silver (Ag) despite being below it in the periodic table?
💡 Hint: Examine lattice structure in d-block elements to help understand.
Challenge and get performance evaluation