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 mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the principal quantum number (n) indicate?
💡 Hint: Think about the electron's distance from the nucleus.
Question 2
Easy
Can n take zero or negative values?
💡 Hint: Recall that n represents specific shells of electrons.
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 does the principal quantum number (n) signify?
- Distance from nucleus
- Total number of electrons
- Energy level of electrons
💡 Hint: It's about where electrons are found.
Question 2
True or False: The value of the principal quantum number can be zero.
- True
- False
💡 Hint: Consider that n starts counting at 1.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If an atom has a principal quantum number of 4, what is the maximum number of electrons it can hold and how does this affect its reactivity?
💡 Hint: Use the formula 2n² for calculating maximum electrons.
Question 2
Explain how the principal quantum number influences an element's position on the periodic table.
💡 Hint: Consider how similarly placed elements react in similar ways.
Challenge and get performance evaluation