Chemistry for Kids Final Exam

Free Practice Test Instructions:

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

Question 1 1. Which of the following words best describes an atom?

Question 2 2. Atoms have a dense center, also called _____.

Question 3 3. Which of the following discoveries have we made about atoms?

Question 4 4. Which of the following statements BEST describes matter?

Question 5 5. Which describes what is happening in an electrical current?

Question 6 6. Which of the following objects is similar to the way electrons flow in a current?

Question 7 7. Which of the following sentences describes electrons?

Question 8 8. How do atoms bond together?

Question 9 9. What is the atomic mass of this helium isotope?

Question 10 10. Over time the isotope potassium-40 decays into the isotope calcium-40. What is NOT true about potassium-40?

Question 11 11. What is the name of an isotope of neon that has 10 protons, 11 neutrons and 10 electrons?

Question 12 12. Isotopes of an element differ in _____.

Question 13 13. A valence shell is the atom's _____ electron shell.

Question 14 14. What is the goal of every atom? Choose the best answer.

Question 15 15. For groups 1,2 and 13-18 on the periodic table, we can easily tell how many valence electrons an element has based on the _____.

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Chemistry for Kids Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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