Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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 practice test.
Test your understanding with targeted questions related to the topic.
Question 1
Easy
How many electrons can the first shell hold?
💡 Hint: Think about the first level in the structure.
Question 2
Easy
What term describes the outermost electrons?
💡 Hint: These electrons are key to chemical reactions.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the maximum number of electrons the third shell can hold?
💡 Hint: Think of the electron capacity pattern.
Question 2
True or False: Valence electrons are found in the innermost shell.
💡 Hint: Recall the definition of valence electrons.
Solve and get performance evaluation
Push your limits with challenges.
Question 1
Explain the relationship between electron configuration and an element's position in the periodic table.
💡 Hint: Consider how elements with similar configurations are grouped.
Question 2
Given an element with the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵, identify the element and predict its reactivity.
💡 Hint: Analyze its position in the periodic table.
Challenge and get performance evaluation