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Chemistry Review 2
Test Description: Periodic table and chemical and physical properties.
Instructions: Answer all questions to get your test result.
1) Which of the following items is not a part of an atom?
A
Electron
B
Neutron
C
Scantron
D
Proton
2) Which of the following is true about electrons?
A
They travel around the nucleus moving very quickly in energy levels.
B
They hang out in the nucleus.
C
They have no charge.
D
They have a positive charge.
3) Which of the following is true about protons?
A
They have a positive charge.
B
They have no charge.
C
They have a negative charge.
4) What can I find if I know the atomic mass and the atomic number of an atom of an element?
A
Number of neutrons.
B
The name of the atom.
C
The weight of an atom.
D
The total charge of an atom.
5) The law of conservation of mass says that. . .
A
We cannot lose matter during chemical reactions, but matter can change forms.
B
Mass is lost during chemical changes.
C
Energy is lost when chemicals react so we lose heat.
6) Where are all of the non-metals located on the periodic table except for Hydrogen?
A
In the middle of the periodic table.
B
On the left side of the periodic table.
C
On the right side of the periodic table towards the top.
D
At the bottom.
7) How many electrons does Manganese (Mn) have?
A
55
B
40.078
C
25
D
52
8) Copper has an atomic number of 29. How many protons does one atom of copper have?
A
63.548
B
35
C
29
9) How many neutrons does one atom of sodium (Na) have?
A
11
B
12
C
22.99
10) NaCl is table salt. Table salt is an example of which of the following.
A
Heterogeneous Mixture
B
Compound
C
Element
D
Homogeneous Mixture
*select an answer for all questions
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