Practice Atomic and Ionic Radius - 5.8.1 | Unit 3: Periodicity | IB Grade 11: Chemistry
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

games

5.8.1 - Atomic and Ionic Radius

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define atomic radius.

πŸ’‘ Hint: Think about how we measure an atom’s size.

Question 2

Easy

What happens to atomic radius as you move down a group in the periodic table?

πŸ’‘ Hint: Consider the number of electron shells.

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

Does atomic radius generally increase or decrease as you go down a group in the periodic table?

  • True
  • False

πŸ’‘ Hint: Think about how many layers of electrons are added.

Question 2

Isoelectronic species with the same number of electrons but different atomic numbers will have different sizes. Is this statement true or false?

  • True
  • False

πŸ’‘ Hint: What happens to size if protons increase?

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given the following ions: Cl⁻, K⁺, and Ca²⁺, list them in order of increasing ionic radius and justify your reasoning based on nuclear charge.

πŸ’‘ Hint: Consider how the number of protons pulls on the electrons.

Question 2

Explain how the effective nuclear charge changes across Period 3 and how that impacts atomic size.

πŸ’‘ Hint: Think about charge pulling power.

Challenge and get performance evaluation