Question

1) Which of the following electron transitions corresponds toemission of the longest wavelength light?
A. from n = 3 to n = 2
B. from n = 1 to n = 5
C. from n = 4 to n = 2
D. from n = 1 to n = 2
E. from n = 5 to n = 1

2) Emission from an excited Hg atom emits at 254 nm. What is thefrequency of this light?
A: 1.18e15 sec-1
B: 1.18e15 sec
C: 1.18e6 sec-1
D: 1.18e6 sec

3) Order the following elements in terms of increasing ionizationenergy: Ar, Cl, Na, S
A: Na, S, Ar, Cl
B: Cl, Ar, S, Na
C: Ar, Cl, S, Na
D: Na, S, Cl, Ar

4) Order the following compounds in terms of increasingpolarity.
CO, CCl4, NaCl, H2O
A.CCl4, CO, H¬2O, NaCl
B.NaCl, H2O, CO CCl4,
C.CO, CCl4, H¬2O, NaCl
D.NaCl, H2O, CCl4, CO

5) Order the following elements in terms of decreasing electronaffinity (note that a decreasing electron affinity, refers to anincreasing tendency to want to capture an electron): Ar, Cl, Na,S
A: Na, S, Ar, Cl
B: Cl, Ar, S, Na
C: Cl, S, Na, Ar
D: Ar, Na, S, Cl

6) Order the following elements in terms of increasing atomicradii: Ar, Cl, Na, S
A: Na, S, Ar, Cl
B: Cl, Ar, S, Na
C: Ar, Cl, S, Na
D: Na, S, Cl, Ar