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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What are the three subatomic particles of an atom?
💡 Hint: Think about what is found in the nucleus and what orbits around it.
Question 2
Easy
What is the charge of a proton?
💡 Hint: Recall the positive particle found in the nucleus.
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 particles make up the nucleus of an atom?
- Electrons
- Protons and Neutrons
- Only Protons
💡 Hint: Think about what is in the center of the atom.
Question 2
True or False: Electrons have a positive charge.
- True
- False
💡 Hint: Recall the charges of the different subatomic particles.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An element has an atomic number of 12. Determine its atomic mass if it has 6 neutrons and provide its electron configuration.
💡 Hint: Use the atomic number and neutrons to find the atomic mass, then distribute electrons based on the 2n² rule.
Question 2
If an atom contains 5 electrons, how would you write its electron configuration and determine its valency?
💡 Hint: Distribute the 5 electrons according to the shell rules, then calculate the valency.
Challenge and get performance evaluation