2.1 - Atomic and Ionic Sizes
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Practice Questions
Test your understanding with targeted questions
Describe the trend in atomic size across a period.
💡 Hint: Think of the number of protons and their pull on electrons.
What is lanthanide contraction?
💡 Hint: Consider how the f-orbitals affect size.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to atomic radius across a period?
💡 Hint: Remember the trend for periodic atomic radii.
True or False: Ionic sizes of anions are always smaller than their parent atoms.
💡 Hint: Think about electron relationships when gaining electrons.
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Challenge Problems
Push your limits with advanced challenges
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.
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.
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