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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
Proton
B
Scantron
C
Electron
D
Neutron
2) Which of the following is true about electrons?
A
They travel around the nucleus moving very quickly in energy levels.
B
They have a positive charge.
C
They have no charge.
D
They hang out in the nucleus.
3) Which of the following is true about protons?
A
They have a negative charge.
B
They have no charge.
C
They have a positive charge.
4) What can I find if I know the atomic mass and the atomic number of an atom of an element?
A
The name of the atom.
B
The total charge of an atom.
C
The weight of an atom.
D
Number of neutrons.
5) The law of conservation of mass says that. . .
A
Mass is lost during chemical changes.
B
We cannot lose matter during chemical reactions, but matter can change forms.
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
At the bottom.
B
In the middle of the periodic table.
C
On the right side of the periodic table towards the top.
D
On the left side of the periodic table.
7) How many electrons does Manganese (Mn) have?
A
40.078
B
25
C
52
D
55
8) Copper has an atomic number of 29. How many protons does one atom of copper have?
A
29
B
63.548
C
35
9) How many neutrons does one atom of sodium (Na) have?
A
12
B
11
C
22.99
10) NaCl is table salt. Table salt is an example of which of the following.
A
Element
B
Homogeneous Mixture
C
Compound
D
Heterogeneous Mixture
*select an answer for all questions
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