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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the mass number of an element with 8 protons and 5 neutrons?
💡 Hint: Remember to add the number of protons and neutrons together.
Question 2
Easy
If an oxygen atom has 8 protons, what would its atomic number be?
💡 Hint: The atomic number is the number of protons.
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 mass number represent?
- A) The number of protons only
- B) The total number of protons and neutrons
- C) The total number of electrons
💡 Hint: Consider what contributes to an atom's mass.
Question 2
Isotopes of an element have the same number of which subatomic particle?
- A) Protons
- B) Neutrons
- C) Electrons
💡 Hint: Think about how elements are identified.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An isotope has a mass number of 30 and atomic number of 14. How many neutrons does it contain? Provide reasoning for your solution.
💡 Hint: Remember the formula A = Z + N.
Question 2
Explain how changing the number of neutrons affects the stability of an isotope using Carbon-14 as an example.
💡 Hint: Consider the balance between protons and neutrons in terms of atomic stability.
Challenge and get performance evaluation