CRIM 101 Lecture 4: CRIMLEC4

(1) Place the following in order of increasing atomic radius: As, O, and Br

• a) As < Br < O
• b) O < As < Br
• c) Br < As < O
• d) As < O < Br
• e) O < Br < As

(2) Place the following in order of decreasing ionization energy: Cs, Ar, and Mg

• a) Cs > Mg > Ar
• b) Ar > Mg > Cs
• c) Mg > Ar > Cs
• d) Cs > Ar > Mg
• e) Mg > Cs > Ar

Consider a galvanic cell half reaction:

Cs^+ + e -> Cs E^o=-3.026 V
F2 + 2e -> 2F E^o= 2.866 V

What is the anode reaction?

a) Cs^+2 + e-> Cs
b)F2 + 2e -> 2F^-
c)2F^- -> F2+2e
d)Cs -> Cs^+2 + e

If you can, please explain the answer

Which is correctly identified in terms of decreasing ionsizes?

A) O2 - > Br- I-
B) N3- > F- > Na+
C) Al3+ > Mg2+ > Na+
D) F- > O2- > N3-
E) Ba2+ > Cs+ > Rb+