AP Chemistry: Atomic Structure: Tutoring Solution 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. An element is defined by the number of:

Question 2 2. When an electron moves from an excited state to a ground state, it will _____.

Question 3 3.

A computer chip contains 1.20 x 10^23 atoms of silicon. What is its mass?

(The molecular mass of silicon is 28 g/mol.)

Question 4 4. Which of the following is an example when an electron absorbs energy?

Question 5 5. What does the atomic number represent?

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Question 6 6. Why should you avoid looking directly at magnesium burning?

Question 7 7. Who first coined the term atom, meaning indivisible?

Question 8 8. Which is the symbol for the element that contains six electrons in each of its neutral atoms?

Question 9 9. If only one type of atom makes up a substance, what can you call this substance?

Question 10 10. ALL atoms of the same element have:

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Question 11 11. What did Rutherford discover in his gold foil experiment?

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

Question 13 13. Which of the following sets of quantum numbers CAN exist?

Question 14 14.

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

(The molecular mass of copper is 63.5 g/mol.)

Question 15 15. The Bohr model of the atom:

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Question 16 16. Which block is manganese (Mn) located in?

Question 17 17. 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 18 18. The mass number indicates:

Question 19 19. A tenth of a mole of pennies contains how many pennies?

Question 20 20. Magnesium has three common isotopes. Based on its average atomic mass, which is the most common?

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Question 21 21. What should the electron configuration for neon (Ne) end with? Is it going to be a stable atom or a reactive atom?

Question 22 22. Which of the following has a positive charge and a mass of one amu?

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

Question 24 24. The nucleus of an atom:

Question 25 25. What is the largest principal quantum number that a calcium electron can have?

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Question 26 26. What is the principal quantum number for the last electron that is added to potassium?

Question 27 27. What is the correct electron configuration for an atom of sodium (Na)?

Question 28 28. Which quantum number indicates the position of the orbital?

Question 29 29.

A piece of pencil graphite (made of carbon atoms) has a mass of 0.12 grams. How many moles of carbon atoms are in the lead?

(The molecular mass of carbon is 12 g/mol.)

Question 30 30. The average atomic mass or atomic weight found on the periodic table is _____.

AP Chemistry: Atomic Structure: Tutoring Solution 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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