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Atom 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. Which of the following scientists discovered the electron charge using the 'oil drop experiment'?

Question 2 2. Which of the following describes Rutherford's model of the atom?

Question 3 3. Why did Rutherford conclude that gold atoms are mostly made of empty space?

Question 4 4. Which of the following scientists would say that atoms are like plum pudding, where the raisins are negative charges and the rest of the space has positive charges?

Question 5 5. Which magnetic quantum numbers are possible for p orbitals?

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Question 6 6. The electron configuration of Carbon is 1s^2 2s^2 2p^2. How many electrons does Carbon have?

Question 7 7. The energy of an orbital is represented by which letter?

Question 8 8. A(n) _____ is a representation of the arrangement of electrons in an atom of an element. 

Question 9 9. When working with atomic orbitals and quantum numbers, if n = 2, then l can be which of the following values?

Question 10 10. The atomic number of oxygen is 8. Therefore, oxygen atom has:

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Question 11 11. The mass number of Nitrogen is 14, and its atomic number is 7. Therefore, Nitrogen has:

Question 12 12. How many moles of silver (Ag) atoms are there in 3.80 x 10^24 silver atoms?

Question 13 13. How many atoms are there in two moles of helium gas?

Question 14 14. What is the main difference between two isotopes of the same element?

Question 15 15. Who stated that matter is made of atoms?

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Question 16 16. Why should you avoid looking directly at magnesium burning?

Question 17 17. How does the Bohr Model differ from the Rutherford model?

Question 18 18. What is the largest principal quantum number that a calcium electron can have?

Question 19 19. Which letter orbital corresponds to l = 2?

Question 20 20. A piece of copper wire contains 5 moles of copper atoms. What is its mass?

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Question 21 21. Based on Avogadro's number, which of the following is NOT true?

Question 22 22. Why did Democritus disagree with Aristotle?

Question 23 23. Which scientist is credited with discovering the charge of individual electrons?

Question 24 24. Which element has a mass number of 12 and contains 6 neutrons?

Question 25 25. ALL atoms of the same element have:

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Question 26 26. X and Y are elements that are isotopes to each other. Which of the following is true about X and Y?

Question 27 27. How many neutrons does the most common isotope of hydrogen have?

Question 28 28. What is the correct electron configuration for an atom of sodium (Na)?

Question 29 29. What is the maximum number of electrons that can be found in a 5p cluster (or orbital) of a single atom?

Question 30 30. When writing electron configurations, electrons are represented in their lowest possible energy state, called their _____.

Atom 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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