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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a proton?
💡 Hint: Think about what charge it has.
Question 2
Easy
Define an atom.
💡 Hint: What is the fundamental building block of matter?
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 atomic number represent?
- Number of neutrons
- Number of protons
- Mass of the atom
💡 Hint: Think about what identifies an element.
Question 2
True or False: Isotopes of an element have different atomic numbers.
- True
- False
💡 Hint: Focus on the definition of isotopes.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An unknown element has 9 protons and 10 neutrons. Identify the element and its mass number.
💡 Hint: Refer to the periodic table for element identification.
Question 2
An atom has an atomic number of 15 and a mass number of 31. How many neutrons does it have?
💡 Hint: Think about how to derive neutrons from the given numbers.
Challenge and get performance evaluation