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 atomic number of an element?
💡 Hint: Think about what defines an element.
Question 2
Easy
What particles make up the nucleus?
💡 Hint: Remember the collective term we use for these particles.
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 relationship between mass number and the nucleus?
- It is the number of protons only
- It is protons plus neutrons
- It has no relationship
💡 Hint: Consider what contributes to the mass of the nucleus.
Question 2
True or False: The atomic number is the same as the mass number.
- True
- False
💡 Hint: Check the definitions of both terms.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a nucleus with 20 protons and 22 neutrons, calculate its mass number and discuss its stability compared to other elements with varying neutron counts.
💡 Hint: Analyze the stability trend of elements around it in the periodic table.
Question 2
If the binding energy of a nucleus is found to be less than that of another, discuss the implications regarding its stability and potential for radioactive decay.
💡 Hint: Compare the nucleus's binding energies and relate them to their respective isotopic forms.
Challenge and get performance evaluation