Understanding the Atom & Atomic Structure in Physical Science: Homework Help 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. ALL atoms of the same element have:

Question 2 2. X and Y are elements that are isotopes to each other. Which of the following is true about X and Y?

Question 3 3. The average atomic mass or atomic weight found on the periodic table is _____.

Question 4 4. Why did Democritus disagree with Aristotle?

Question 5 5. Which of the following is a definition of a polar covalent bond?

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Question 6 6. Which of the following is true about polar covalent bonds?

Question 7 7. Which element has a mass number of 12 and contains 6 neutrons?

Question 8 8. What does the atomic number represent?

Question 9 9. What is the principal quantum number for the last electron that is added to potassium?

Question 10 10. How many elements are there?

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Question 11 11. Which of the following is made up of one or more elements?

Question 12 12. Which of the following best describes this molecular formula H2O? (Note the 2 is subscripted)

Question 13 13. Which of the following is a definition of matter?

Question 14 14. Which of the following is a true statement?

Question 15 15. Which quantum number indicates the position of the orbital?

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Question 16 16. What information can you retrieve from a molecular formula?

Question 17 17. Which of the following is a correct definition of an element?

Question 18 18. How are isotopes of the same element similar?

Question 19 19. An element is defined by the number of:

Question 20 20. If only one type of atom makes up a substance, what can you call this substance?

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Question 21 21. Which of the following statements are true regarding electronegativity ?

Question 22 22. Which of the following is a true statement?

Question 23 23. Which of the following sets of quantum numbers CAN exist?

Question 24 24. What did Rutherford discover in his gold foil experiment?

Question 25 25. Which scientist is credited with discovering the charge of individual electrons?

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Question 26 26. Particles that are found in the atomic nucleus are:

Question 27 27. What holds atoms together in a molecule?

Question 28 28. Which of the following was the instrument used for the discovery of the electron?

Question 29 29. The mass number indicates:

Question 30 30. What is the maximum number of electrons that can be found in a 5p cluster (or orbital) of a single atom?

Understanding the Atom & Atomic Structure in Physical Science: Homework Help 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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