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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
4
B
11
C
3
D
7
2) Pick the example of a molecule of a compound
A
O2
B
O
C
H2O
D
H2
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
Na
B
Po
C
P
D
K
5) Pick the example of a molecule of an element
A
O
B
C2
C
C
D
CO2
6) A sign of a chemical reaction is
A
rip the object in two
B
object gives of bubbles
C
paint the object
D
put the object near the window
7) An example of a chemical formula is
A
C6H12O6
B
temperature changes
C
C
D
color change
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
19
B
9
C
28
D
10
10) The atomic mass (weight) for titanium is
A
48
B
56
C
22
D
23
11) The number of neutrons in a hydrogen atom are
A
1
B
3
C
0
D
2
12) An example of a physical change is
A
temperature change
B
precipitate forms
C
painted green
D
explosion
13) What is the symbol for chlorine
A
Ch
B
C
C
Ce
D
Cl
*select an answer for all questions
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