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Unit 3 Review
Unit 3 Review
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Questions
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Answers
1
If an element has 45 neutrons and the mass number is 70, how many protons are there?
25
45
15
35
2
What element is represented by the symbol He?
Hydrogen
Halogen
Helium
Hesium
3
What is Oxygen's chemical symbol?
O
Og
Ox
Oy
4
What element is represented by the symbol Pb?
Iron
Plutonium
Lead
Plubonium
5
What do we call the last column of elements that are in a 'perfect' state and do not bond with other elements?
Noble Gases
Inert Gases
Perfect Gases
Unbonded Gases
6
What element has the chemical symbol of Zn?
Zirconium
Zinc
Zonium
Zircon
7
What is Chlorine's chemical symbol?
Ch
Ce
Cr
Cl
8
Which region is in green on the periodic table?
Metals
Metalloids
Nonmetals
9
Which region is in peach/tan on the periodic table?
Metals
Nonmetals
Metalloids
10
Looking at the provided bar graph (in the question), which is the
INDEPENDENT
variable?
Percentage
Years
11
An element contains 18p, 18n, and 18e. What is its
mass number
?
9
18
54
36
12
Protons and neutrons
are found in the nucleus of the atom.
False
True
13
What element is represented by the symbol Cu?
Cumin
Copper
Cupertonium
Cupidium
14
What element is represented by the symbol I?
Iodine
Iranium
Indigo
Iridium
15
What element is represented by the symbol F?
Felspar
Flint
Felurium
Fluorine
16
In the provided line graph, which is the
DEPENDENT
variable?
Grade Level
Math Schore (%)
17
What element is represented by the symbol Ca?
Cesium
Cadmium
Calcium
Carbon
18
In a neutral atom, the number of protons and electrons are
equal
True
False
19
Looking at the provided line graph (next), in what grade did Jill see a
DROP
in her Math Score?
10th
8th
9th
12th
20
Which region is in purple on the periodic table?
Metals
Nonmetals
Metalloids
21
What element is represented by Au?
Gold
Vibranium
Silver
Steel
22
The charge for a proton is negative (-).
False
True
23
Looking at Letter 'D', which location AND particles are correct?
Cloud/Shell with neutrons (n)
Cloud/Shell and electrons (e-)
Cloud/Shell with protons AND neutrons
Cloud/Shell with protons (p+)
24
Looking at the provided element symbol, what is the
ATOMIC NUMBER?
78
39
195.085
98
25
Which graph below would you use to show
percentages
from your data?
Pie Graph
Bar Graph
Line Graph
Holo Graph
26
What is Titanium's chemical symbol?
Ta
Tm
Ti
Tn
27
An element contains 25 p, 25n, and 25e. What is the
atomic number
?
13
50
25
75
28
What element is represented by the symbol Sn?
Tin
Sessium
Selenium
Sodium
29
Looking at the provided element symbol, what is the
MASS NUMBER?
195.085
39
78
98
30
What element is represented by the symbol P?
Phelspar
Phosphorus
Plutonium
Potassium
31
What is Potassium's chemical symbol?
Po
P
Pt
K
32
What is the chemical symbol for Cobalt?
Co
Ct
Cb
Cl
33
In the experiment A+BC --> AB + C, what is/are the reactants?
AB only
AB + C
A + BC
A only
34
What is Hydrogen's chemical symbol?
Hy
Hr
H
Hd
35
The
PRODUCT
of a reaction is what comes OUT of a reaction
False
True
36
If an element has 35 protons and the mass number is 80, how many neutrons are there?
80
45
160
35
