Name ________________
CHEM 1004
Homework #2 (Modified)
Fall 2010
Buckley
This homework is due on Tuesday, September 7 at class time.
1.
2.
(10 points) Match each name with the appropriate phrase.
____ Goldstein
A. battery
____ Rutherford
B. discovery of neutron
____ Thomson
C. determination of mass of electron
____ Volta
D. discovery of electron and determination of mass/charge ratio
____ Faraday
E. discovery of proton
____Chadwick
F. discovery of X-rays
____ Millikan
G. scattering experiment that led to current view of atom
____ Roentgen
H. development of electrochemistry and its terms
(9 points) For each of the following nucleons, indicate the number of protons, neutrons, and the mass
number.
81
35
Br
65
30
Zn
37
17
3.
Cl
(8 points)
a. List the symbols and names for two elements that are in the alkali earth family.
b.
List the symbols and names for two elements that are noble gases.
c.
List the symbols and names for two elements that are transition metals.
d.
List the symbols and names for two elements that are halogens.