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Answers to PQ027: Atomic Anatomy/Transition Elements
10 Points
INSTRUCTIONS (Items 1-17): Complete Table I using the Periodic Chart on the next page and Row 1 as an example.
Table I. Basic Properties of Selected Atomic Species.
Isotopic Number Number Atomic Number
Species
Mass
Electrons
Symbol Protons Neutrons
Name
Charge
36
17
Chloride-36 ion
Cl-
1
17
2
80
bromide-80
Br-
35
ion
9
Lead-208
3
82
36
4
35
10
208Pb
19
45
11
126
18
5
80
12
208
13
7
-1
15
0
[Xe]546s24f145d106p2
82
17. In a column of the periodic chart the chemical properties of the elements in the column
I. Gradually change as the atomic number increases.
II. Are very similar as the atomic number increases.
III. Forms different binary charges as the atomic number increases.
IV. Forms the same type of binary charge as the atomic number increases.
8
[Ar]184s23d104p6
14
82
Lewis
Diagram
[Ne]103s23p6
-1
6
36
Nobel Gas
Electron
Configuration
a.
b.
c.
d.
I and III
I and II
II and IV
III and IV
16
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18. In a row of the periodic chart the chemical properties of the elements
I. Gradually change as the atomic number increases.
II. Are very similar as the atomic number increases.
III. Forms different binary charges as the atomic number increases.
IV. Forms the same type of binary charge as the atomic number increases.
a.
b.
c.
d.
I and III
I and II
II and IV
III and IV
INSTRUCTIONS All the items below relate to the following list of elements:
P U Pt Rb Hg Cl Kr Cr Mn C Mo Fe B Au Zn Eu Al Ni O Na Cu Ag Co.
19-31. Write in the space below the names of 14 transition elements in the above list:
a. Uranium
h. Gold
b. Platinum
i. Zinc
c. Mercury
j. Europium
d. Chromium
k. Nickel
e. Manganese
l. Copper
f. Molibdium
m Silver
g. Iron
n. Cobalt
32. There are two inner transition elements in the list. Name one of them: ___Uranium & Europium____
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