Sample Test Chapter 7 The Structure of Atoms and Periodic Trends 1 Which of the following statements concerning the Pauli exclusion principle is are CORRECT If two electrons occupy the same orbital they must have opposite spins 1 2 No two electrons in an atom can have the same four quantum numbers 3 Electrons with opposing spins are attracted to each other a 1 only b 2 only c 3 only d 1 and 2 e 1 2 and 3 ANS D a 0 b 1 c 2 d 5 e 10 ANS C a 0 b 2 c 6 d 10 e 14 ANS C a 4 b 8 c 18 d 32 e 50 ANS C 2 How many electrons can be described by the quantum numbers n 4 2 0 3 How many electrons can be described by the quantum numbers n 7 1 4 What is the maximum number of electrons that can occupy the n 3 shell 5 Which of the following sets of quantum numbers is allowed 1 2 ms 1 2 1 ms 1 0 ms 1 2 1 ms 0 2 ms 1 a n 2 1 b n 3 2 c n 4 1 d n 4 3 e n 5 2 ANS C 6 Which of the following statements regarding subshell filling order for a neutral atom is are CORRECT 1 Electrons are assigned to the 4f subshell before they are assigned to the 6s subshell 2 Electrons are assigned to the 5d subshell before they are assigned to the 6p subshell 3 Electrons are assigned to the 4p subshell before they are assigned to the 4s subshell a 1 only b 2 only c 3 only d 1 and 3 e 1 2 and 3 ANS B a C b Cd c Cs d Ce e Cf ANS C a Ge b S c I d Mn e Sr ANS E a V b P c Si d Ti e As ANS B a B b O c C d Be e Si ANS C a Ni b Fe c Zn d Mn e Cu 7 Which of the following elements is an s block element 8 Which of the following atoms is diamagnetic in the ground electronic state 9 Which element has the ground state electron configuration 1s22s22p63s23p3 10 Which element has the following ground state electron configuration 11 For which of the following atoms is the 2 ion diamagnetic in the ground state 12 What 2 ion has the following ground state electron configuration 13 Place the following atoms in order of increasing atomic radii Se Sb Br and Te 14 For which one of the following elements is the second ionization energy over ten times larger than its 15 Place the following ions in order from smallest to largest ionic radii Se2 Sr2 Y3 and Br ANS C a oxide ion b nitride ion c fluoride ion d sulfide ion e magnesium ion ANS D a Br Se Te Sb b Se Br Sb Te c Se Br Te As d Sb Te Se Br e Te Sb Se Br ANS A first ionization energy a B b N c Li d Ne e Cu ANS C a Se2 Sr2 Y3 Br b Se2 Br Sr2 Y3 c Br Se2 Y3 Sr2 d Y3 Sr2 Br Se2 e Sr2 Y3 Se2 Br ANS D