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Prentice Hall Chemistry Chapter 4: Atomic Structure Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. How are isotopes of the same element similar?

Question 2 2. The mass number indicates:

Question 3 3. The nucleus of an atom:

Question 4 4. If only one type of atom makes up a substance, what can you call this substance?

Question 5 5. ALL atoms of the same element have:

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Question 6 6. Who first coined the term atom, meaning indivisible?

Question 7 7. If Atom #1 has 19 protons and 22 neutrons, and Atom #2 has 20 protons and 22 neutrons, are these isotopes of the same element?

Question 8 8. What does the atomic number represent?

Question 9 9. The average atomic mass or atomic weight found on the periodic table is _____.

Question 10 10. Why did Democritus disagree with Aristotle?

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Question 11 11. Magnesium has three common isotopes. Based on its average atomic mass, which is the most common?

Question 12 12. Particles that are found in the atomic nucleus are:

Question 13 13. X and Y are elements that are isotopes to each other. Which of the following is true about X and Y?

Question 14 14. Which of the following has a positive charge and a mass of one amu?

Question 15 15. An element is defined by the number of:

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Question 16 16. What did Rutherford discover in his gold foil experiment?

Question 17 17. Which element has a mass number of 12 and contains 6 neutrons?

Question 18 18. How many neutrons does the most common isotope of hydrogen have?

Question 19 19. Which of the following was the instrument used for the discovery of the electron?

Question 20 20. Which scientist is credited with discovering the charge of individual electrons?

Prentice Hall Chemistry Chapter 4: Atomic Structure Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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