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Chemistry Mini Unit Part 2
Test Description: Atoms Periodic Table of the Elements Chemical Reactions
Instructions: Answer all questions to get your test result.
1) Lithium has an atomic number of
A
3
B
11
C
7
D
4
2) Pick the example of a molecule of a compound
A
O2
B
H2
C
O
D
H2O
3) The number of electrons in an silver atom are
A
108
B
48
C
61
D
47
4) The symbol for potassium is
A
Po
B
K
C
Na
D
P
5) Pick the example of a molecule of an element
A
C
B
C2
C
O
D
CO2
6) A sign of a chemical reaction is
A
paint the object
B
rip the object in two
C
put the object near the window
D
object gives of bubbles
7) An example of a chemical formula is
A
color change
B
C
C
temperature changes
D
C6H12O6
8) The subatomic particle that circles the nucleus is
A
protons
B
electrons
C
nucleus
D
neutrons
9) The number of neutrons in a fluorine atom are
A
28
B
19
C
9
D
10
10) The atomic mass (weight) for titanium is
A
22
B
48
C
23
D
56
11) The number of neutrons in a hydrogen atom are
A
0
B
3
C
1
D
2
12) An example of a physical change is
A
painted green
B
explosion
C
temperature change
D
precipitate forms
13) What is the symbol for chlorine
A
Ce
B
C
C
Ch
D
Cl
*select an answer for all questions
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