AP Chemistry: Atomic Structure: 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. What is the correct electron configuration for an atom of sodium (Na)?

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

Question 3 3. Which block is manganese (Mn) located in?

Question 4 4. The mass number indicates:

Question 5 5. Magnesium has three common isotopes. Based on its average atomic mass, which is the most common?

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Question 6 6. The nucleus of an atom:

Question 7 7. Which scientist is credited with discovering the charge of individual electrons?

Question 8 8. What is the principal quantum number for the last electron that is added to potassium?

Question 9 9. Particles that are found in the atomic nucleus are:

Question 10 10. Which letter orbital corresponds to l = 2?

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Question 11 11. 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 12 12. Who first coined the term atom, meaning indivisible?

Question 13 13. Which of the following is an example of when an electron absorbs energy?

Question 14 14.

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

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Question 16 16.

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

Question 18 18. The Bohr model of the atom:

Question 19 19. What should the electron configuration for neon (Ne) end with? Is it going to be a stable atom or a reactive atom?

Question 20 20. A tenth of a mole of pennies contains how many pennies?

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Question 21 21. Which of the following sets of quantum numbers CAN exist?

Question 22 22. ALL atoms of the same element have:

Question 23 23. The average atomic mass or atomic weight found on the periodic table is _____.

Question 24 24. An element is defined by the number of:

Question 25 25. Which quantum number indicates the position of the orbital?

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Question 26 26. Which is the symbol for the element that contains six electrons in each of its neutral atoms?

Question 27 27.

A piece of aluminum foil has a mass of 27 grams. About how many atoms does this contain?

(Aluminum has a molecular mass of 27 g/mol.)

Question 28 28. How are isotopes of the same element similar?

Question 29 29. What does the atomic number represent?

Question 30 30. What is the largest principal quantum number that a calcium electron can have?

AP Chemistry: Atomic Structure: 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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