Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is valency?
💡 Hint: Think about what it means when atoms join together.
Question 2
Easy
How many valence electrons does sodium have?
💡 Hint: Check the position of sodium in the periodic table.
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 is the valency of carbon with 4 valence electrons?
- 1
- 2
- 4
💡 Hint: Refer back to what you learned about elements with exactly 4 valence electrons.
Question 2
True or False: Atoms with more than 4 valence electrons will have a valency equal to the number of those electrons.
- True
- False
💡 Hint: Remember the two rules we discussed!
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An element has 5 valence electrons. Calculate its valency and predict how it might bond with other elements.
💡 Hint: Use the valency rule for elements having more than 4 valence electrons.
Question 2
Bromine (Br) has 7 valence electrons. Determine its valency and explain its likely behavior in a chemical reaction.
💡 Hint: Remember the implications of the octet rule when calculating valency.
Challenge and get performance evaluation