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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the definition of an atom?
💡 Hint: Think about the basic unit of something.
Question 2
Easy
Who discovered the electron?
💡 Hint: Remember his famous cathode ray experiment.
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 charge of an electron?
- Positive
- Negative
- Neutral
💡 Hint: Think about the opposite charge to protons.
Question 2
True or False: The atomic number equals the number of neutrons.
- True
- False
💡 Hint: Remember the definition of atomic number.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A neutral atom has 10 protons and 10 electrons. If it gains 2 electrons, what is its new charge and how does that affect its chemical behavior?
💡 Hint: Think about how gaining electrons affects overall charge.
Question 2
If you find an element with 6 protons and 8 neutrons, what is its mass number and how many isotopes could this element potentially have?
💡 Hint: Consider how neutrons vary among isotopes.
Challenge and get performance evaluation