Questions

  • How many different values of ml are possible in the 5d sublevel?
    • 2
    • 5
    • 4
    • 1
    • 8
  • In which orbital below would an electron (on average) be farthest from the nucleus?
    • 1s
    • 3d
    • 3s
    • 5f
    • 2p
  • Predict the charge of the most stable ion of magnesium
    • 2+
    • 1-
    • +
    • 2-
    • 3+
  • Give the ground state electron configuration for Rb+
    • [Ar]4s24p6
    • [Kr]5s1
    • [Kr]5s24d2
    • [Kr]5s2
    • [Ar]4s23d 104p6
  • Place the following in order of decreasing magnitude of lattice energy
    • KF MgS RbI
    • RbI > KF > MgS
    • RbI > MgS > KF
    • MgS > KF > RbI
    • KF > RbI > MgS
    • MgS > RbI > KF
  • What is the empirical formula for C8H16O4?
    • C2H4O
    • CHO
    • CH2O
    • CHO2
    • C2H5O
  • What is the mass of 9.00 x 10^22 molecules of NH3?
    • 0.00878 g
    • 2.55 g
    • 0.393 g
    • 114g
  • Place the following elements in order of increasing electronegativity
    • Li Fr P
    • P < Li < Fr
    • Fr < Li < P
    • Fr < P < Li
    • Li < P < Fr
    • P < Fr < Li
  • Place the following in order of increasing X-A-X bond angle, where A represents the central atom and X represents the outer atoms in each molecule
    • HCN H2O H3O+
    • H2O < H3O+ < HCN
    • H3O+ < H2O < HCN
    • HCN < H3O+ < H2O
    • H2O < HCN < H3O+
    • HCN < H2O < H3O+
  • Determine the electron geometry, molecular geometry and polarity of HBrO2.
    • eg = trigonal bipyramidal, mg = trigonal planar, nonpolar
    • eg = octahedral, mg = square planar, nonpolar
    • eg = tetrahedral, mg = linear, nonpolar
    • eg = tetrahedral, mg = bent, polar
    • eg = linear, mg = linear, polar
  • Combustion analysis of an unknown compound containing only carbon and hydrogen produced 2.277 g of CO2 and 1.161 g of H2O. What is the empirical formula of the compound?
    • C5H2
    • CH2
    • C4H10
    • C2H5
  • What is the mass of 0.500 mol of trichlorofluoromethane, CCl3F?
    • 275 g
    • 3.64 * 10^-3 g
    • 137 g
    • 68.7 g
  • Use Lewis theory to determine the chemical formula for the compound formed between Mg and N
    • Mg2N3
    • MgN
    • MgN2
    • Mg2N
    • Mg3N2
  • Place the following in order of decreasing radius
    • Te2- F- O2-
    • F— > O2- > Te2-
    • F- > Te2- > O2-
    • Te2- > F- > O2-
    • Te2- > O2- > F-
    • O2- > F- > Te2-
  • Which one of the following elements is a poor conductor of heat and electricity?
    • copper
    • iron
    • iodine
    • lead
  • How many electrons are in the ion, S2-?
    • 14
    • 34
    • 30
    • 18
  • Identify the correct values for a 2p sublevel
    • n = 3, l = 1, ml = 0
    • n = 2, l = 1, ml = 0
    • n = 1, l = 0, ml = 0
    • n = 2, l = 1, ml = +2
    • n = 4, l = -1, ml = +2
  • Which of the following transitions (in a hydrogen atom) represent absorption of the smallest frequency photon?
    • n = 1 to n = 4
    • n = 5 to n = 1
    • n = 3 to n = 1
    • n = 5 to n = 6
    • n = 1 to n = 2
  • What is the energy of light associated with a transition from 3s to 8p in a hydrogen atom? Does this represent absorption or emission of a photon? The Rydberg constant is 1.097 x 10^-2
    • 2.08 x 10^-19 J, emission
    • 2.08 x 10^-19 J, absorption
    • 4.54 x 10^-19 J, absorption
    • 4.54 x 10^-19 .1, emission
    • 6.81 x 10^-20 J, absorption
  • Identify an anion
    • An atom that has lost an electron
    • an atom that has lost a neutron and a proton
    • an atom that has gained an electron
    • an atom that has gained a neutron and a proton
  • Neon belongs to the __ of the periodic table
    • alkali metal
    • noble gas
    • halogen
    • alkaline earth metal
  • Which species has the highest ionization energy?
    • Al2+
    • Mg+
    • Mg
    • Al+
    • Mg2+
  • Choose the compound below that should have the highest melting point according to the ionic bonding model
    • CaS
    • MgO
    • LiF
    • AlN
    • RbF
  • Give the structure for lithium chlorate
    • LiClO3
    • LiClO4
    • LiClO
    • LiClO2
  • What is the empirical formula of a compound that is 48.6% C, 8.2% H, and 43.2% 0 by mass?
    • C3H6O2
    • C6HO5
    • C6H12O4
    • C4H8O3
    • C3HO2
  • Give the number of valence electrons for SI4
    • 28
    • 34
    • 32
    • 30
  • Draw the best Lewis structure for CH3+1. What is the formal charge on the C?
    • -1
    • 0
    • 1
    • 2