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 the valency of an atom with 3 valence electrons?
💡 Hint: Think about the rule for atoms with valence electrons less than or equal to 4.
Question 2
Easy
If an atom has 5 valence electrons, what is its valency?
💡 Hint: Remember to apply the octet rule.
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 valency?
💡 Hint: Think about how many bonds a certain atom can make.
Question 2
Is the octet rule applied to all atoms?
- True
- False
💡 Hint: Consider the exceptions, such as hydrogen and alkali metals.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the valency of magnesium and sulfate to explain the formation of magnesium sulfate.
💡 Hint: Consider how many electrons each element needs for stability.
Question 2
Using informed understanding of valency, predict the compound that forms when two fluorine atoms bond.
💡 Hint: Look at how shared electrons lead to bond formation.
Challenge and get performance evaluation