Chapter 3 Review Game Questions

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Presentation transcript:

Chapter 3 Review Game Questions

Question #1 What is the maximum number of electrons the d sublevel/shape can hold? 10 (because it has 5 orbitals, each can hold 2 electrons)

Question #2 What is the purpose of quantum numbers? a) to locate protons b) to locate electrons c) to locate neutrons d) to excite electrons Answer: b

Question #3 Why doesn’t the number of protons change when an ion forms? Changing the protons changes the element/identity

Question #4 How many atoms are in 2.5mol of vanadium? Use conversion factors and dimensional analysis! 1.5x1024 atoms V

Question #5 How many electrons, protons, and neutrons does the following ion have? Cr+3 21 e-, 24p+, 25n 49 24

Question #6 Which of the following was part of Dalton’s atomic theory that is no longer true today? a. In chemical reactions atoms are combined, separated, and rearranged. b. Atoms of the same element have the same properties. c. Atoms of different elements have different properties. d. Atoms of different elements combine in simple, whole number ratios to form compounds. Answer: b

Question #7 How many atoms are in 32.4g of boron? Show work using dimensional analysis and conversion factors! 1.80 x 1024 atoms

Question #8 What is the full electron configuration for manganese? 1s22s22p63s23p64s23d5

Question #9 How many protons, electrons, and neutrons are in the following atom: titanium-49? 22 protons, 22 electrons, and 27 neutrons

Question #10 Which of the following is correct with respect to the masses of subatomic particles? a. electron > proton b. neutron < proton c. electron = neutron d. proton > electron Answer: d

Question #11 What electron configuration rule is violated in this example: Pauli Exclusion Principle 1s

Question #12 How many orbitals does the p sublevel have? What is the shape of the p sublevel? 3 orbitals; peanut

Question #13 What model of the atom is based on the probability of finding an electron? quantum model (electron cloud model)

Question #14 What was the name of Thomson’s model of the atom? Draw a picture of his model- include all charges and label all particles. Plum pudding- negative electrons embedded in a positive ball

Question #15 What element is represented by the following electron configuration? [Kr] 5s24d105p4 tellurium (Te)

Question #16 What is the name given to electrons in an atom that are at low energy? ground state

Question #17 What is abbreviated orbital diagram configuration for Zr (zirconium)? [Kr] 5s 4d

Question #18 Who determined that atoms are mostly empty space? What finding allowed him to draw this conclusion? Rutherford; most of the the alpha particles went straight through the gold foil

Academic Final Question What is the molar mass of water, H2O? Use your answer above to find how many moles of water are in 20.g of water. Answers: 18.02g/mol 1.1mol

Honors Final Question If you have a 32g sample of aluminum chloride (AlCl3), how many molecules of aluminum chloride do you have? Answer: 1.4 x 1023 molecules

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