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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the atomic number represent?
💡 Hint: Think about what defines an element.
Question 2
Easy
What is the mass number if an atom has 3 protons and 4 neutrons?
💡 Hint: Remember, mass number = protons + neutrons.
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 defines the atomic number?
- Number of neutrons
- Number of protons
- Total nucleons
💡 Hint: Think about how elements are identified.
Question 2
True or False: Isobars have the same number of protons.
- True
- False
💡 Hint: Remember the difference in their definitions.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider the isotopes of carbon, specifically carbon-12 and carbon-14. What are their atomic numbers, mass numbers, and how do they differ in terms of neutrons?
💡 Hint: Apply the relationship between protons, neutrons, and mass number.
Question 2
Imagine an atom with 20 protons and 20 neutrons. If it were found to have an electron configuration of 2-8-10, describe the atomic number, mass number, and its possible uses.
💡 Hint: Check the periodic table for its applications in real life.
Challenge and get performance evaluation