Exam 1 Form C Key 1 D 2 A 3 B 4 D 5 D 6 E 7 A 8 B 9 C 10 C 11 D 12 D 13 D 14 C 15 C 16 B 17 C 18 D 19 C 20 B 21 A 22 D 23 25 p 31 no 22 e 24 a Rb 5s 25 a Mn 4s2 3d5 26 a How many moles of P are in a sample of P2O5 that also contains 1 62 g of O 2 mol P 1 62 g O x 5 x 16 00 g O b How many grams of C are in a sample of C6H14 that also contains 8 75 x 1024 H atoms 6 x 12 01 g C 8 75 x 1024 H atoms x 14 x 6 02 x 1023 H atoms 27 F fluorine 56 8 p 10 no 10 e Mn3 b Pt 5d b Te Se 28 a FeSO3 b KC2H3O2 c Au2O3 29 a ammonium phosphate NH4 3PO4 c rubidium nitride 18 O2 c Sn 5p 5s2 5p4 selenium Cu iron II sulfite potassium acetate gold III oxide b manganese III chloride MnCl3 Rb3N copper For the first two questions consider the following scenarios A a 3 charge and a 2 charge at 2 units of distance apart B a 1 charge and a 3 charge at 2 units of distance apart C a 0 charge and a 2 charge at 3 units of distance apart D a 3 charge and a 2 charge at 3 units of distance apart E a 2 charge and a 1 charge at 2 units of distance apart 1 Which one is the highest energy scenario 2 Which one is the lowest energy scenario 3 Consider the following transitions in the Bohr model of the atom A n 2 n 4 B n 6 n 3 C n 3 n 5 D n 2 n 1 Which of these is the emission process that gives the smallest energy photon 4 From the following list of orbitals select the lowest energy orbital A 4s on K B 4p on As C 3p on P D 3p on Cl 5 Which statement best describes the location of Cl on the periodic table A it is a metal in the same period as F B it is a non metal in the same group as S C it is a metal in the same group as Br D it is a non metal in the same period as Ar 6 Of the following experiments which one gives evidence for quantized energy levels A Millikan s oil drop experiment B mass spectrometry C Rutherford s gold foil experiment D Thomson s cathode ray experiment E atomic spectrum of hydrogen 7 Given the energy diagram at the right select the statement that is TRUE A Y has the largest electron affinity B X has the smallest electron affinity C Z has the smallest ionization energy D Y has largest ionization energy E none of these statements are true For the next two questions consider the following samples A 3 mol Be B 2 mol B C 1 5 mol P D 6 x 1023 Ca atoms E 3 x 1023 V atoms 8 Which sample contains the least mass 9 Which sample contains the greatest mass 10 Select the correct statement A electrons and neutrons are in the nucleus of an atom B protons and electrons are primarily responsible for the mass of an atom C protons and electrons are responsible for the charge of an ion D an atom has an unequal number of protons and electrons 11 Infrared light has a wavelength of about 10 000 nm while X rays have a wavelength of about 1 nm Which of the following statements is true regarding these A X rays have the smaller energy and the smaller frequency B X rays have the smaller energy and the larger frequency C X rays have the larger energy and the smaller frequency D X rays have the larger energy and the larger frequency 12 Consider the following transitions in an atom I 4s 3d II 5p 4d Which correspond to absorption of energy A I only B II only C III only III 4f 5d D I and III E all of them 13 Which of the following statements about levels and sublevels is NOT correct A The n 3 level contains nine orbitals B The 2s sublevel can contain up to two electrons C The 5p sublevel contains three orbitals D The 4d sublevel can contain up to six electrons E The n 2 level contains four orbitals 14 From the following list of elements select the one with the smallest ionization energy A Ca B O C Rb D Se E Si For the next two questions consider the following samples A 1 5 mol H B 20 g of Ar C 21 g of Li D 85 g of Rb 15 Which one contains the greatest number of atoms 16 Which one contains the least number of atoms E 80 g of K 17 How many of the compounds below are ionic HClO4 KBr Fe2O3 CrCl3 A one B two C three D all four E none of them 18 Which of the following chemical species would have the smallest radius C Mg D Mg2 A Na B Na1 19 Consider the following experiment where a sample of two different particles X and Y pass from a source through an electrical field Which of the following three statements is are consistent with the experiment I X is a 1 charge Y is a 1 charge and they are of equal mass II X is a 2 charge Y is a 2 charge and they are of equal mass III X is a 1 charge Y is a 2 charge and the mass of X is half the mass of Y A I only B II only C I and III D II and III E all three are consistent 20 Atoms with small electronegativities will generally have A large radii and low energy valence electrons B large radii and high energy valence electrons C small radii and low energy valence electrons D small radii and high energy valence electrons 21 From the following list of orbitals select the highest energy orbital A 2p on C B 2p on S C 2p on Cu 22 Select the bond with the greatest degree of ionic character A As Cl B As F C Sb Cl D Sb F D 2p on Na E Se Cl GO ON TO THE NEXT PAGE PLACE YOUR ANSWERS FOR 23 29 DIRECTLY ON THE NEXT PAGE 23 3 points each Write the symbols of the isotopes including charge and mass number that have 25 p 31 no 22 e 8 p 10 no 10 e 24 3 points each What is the highest occupied orbital in each of the following atoms a Rb b Pt c Sn 25 3 points each Write the valence electron configuration for the following atoms b Te a Mn 26 5 points each SET …