Practice Filling Order and Exceptions - 5.1.1 | 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

5.1.1 - Filling Order and Exceptions

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

What is the general filling order for atomic orbitals?

πŸ’‘ Hint: Think about which orbitals are filled first in transition metals.

Question 2

Easy

Which electrons are lost first when a transition metal becomes a cation?

πŸ’‘ Hint: Check the order of filling you just learned.

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 orbital is filled before the (nβˆ’1)d orbital in transition metals?

  • 4p
  • 3s
  • 4s

πŸ’‘ Hint: Remember the order of filling you learned in class.

Question 2

True or False: Chromium has a fully filled d subshell.

  • True
  • False

πŸ’‘ Hint: Think about the electron configuration of chromium.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given the electron configuration of a transition metal, identify its common oxidation states based on its filling order.

πŸ’‘ Hint: Refer to how many d electrons are present and how they correspond to metal reactivity.

Question 2

Explain how the instability of certain configurations leads to the preference for cation formation in transition metals.

πŸ’‘ Hint: Relate back to half-filled vs. filled subshell stability.

Challenge and get performance evaluation