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Atoms, Elements & Compounds Basics 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!

Page 1

Question 1 1. Which of the following type of bond occurs when one atom gives one or more electrons to another atom?

Question 2 2. If you create a mixture by putting two substances together, what kind of bonding occurs?

Question 3 3. What kind of substances tend to form covalent bonds?

Question 4 4. What is the difference between a molecule and a compound?

Question 5 5. Which of the following is NOT a subatomic particle found inside the atom?

Page 2

Question 6 6. Which of the following will react violently with water to form a base?

Question 7 7. Which of the following is the poorest conductor of electricity?

Question 8 8.

Which element is found in the group described by the statement below?

This group contains poisonous, very reactive elements often used in bacteria killing or household cleaners.

Question 9 9. Which of the following can be found in the second period of the periodic table?

Question 10 10. Elements in Group 2 are known as the _____.

Page 3

Question 11 11. Which scientist used the oil drop experiment to measure the charge of individual electrons?

Question 12 12. Who first coined the term atom, meaning indivisible?

Question 13 13. What did Rutherford discover in his gold foil experiment?

Question 14 14. Why did Democritus disagree with Aristotle?

Question 15 15. Which of the following was the instrument used for the discovery of the electron?

Page 4

Question 16 16. Which of the following is a definition of a molecule?

Question 17 17. Which of the following is an example of a mixture?

Question 18 18. Which of the following is a TRUE statement?

Question 19 19. Which of the following is a definition of a compound?

Question 20 20. Which of the following is a TRUE statement?

Page 5

Question 21 21. Which of the following is NOT an example of a compound?

Question 22 22. _____ properties of matter can be determined without changing composition, while _____ properties of matter must change the composition of matter.

Question 23 23. Ocean water is a good example of a mixture because _____

Question 24 24. Pure substances are further divided into elements and compounds. Which one best describes the rust found on a vehicle over time?

Question 25 25. The ability of iron to react to oxygen is an example of _____

Page 6

Question 26 26. Which statement is true about the origin of chemical symbols?

Question 27 27. What is a chemical symbol?

Question 28 28. Which of the following is true about chemical symbols?

Question 29 29. Which of the following is the correct chemical symbol for iron?

Question 30 30. Why are chemical symbols used?

Atoms, Elements & Compounds Basics 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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