WorksheetsHomework Quiz #4: 8.5 A-C
Total questions: 26
Worksheet time: 6hrs 33mins
Name
Class
Date
1.
a)
F
b)
G
c)
H
d)
J
2.
a)
F
b)
G
c)
H
d)
J
3.
a)
A
b)
B
c)
C
d)
D
4.
a)
F
b)
G
c)
H
d)
J
5.
a)
A
b)
B
c)
C
d)
D
6.
a)
A
b)
B
c)
C
d)
D
7.
a)
F
b)
G
c)
H
d)
J
8.
a)
A
b)
B
c)
C
d)
D
9.
a)
F
b)
G
c)
H
d)
J
10.
Which of the following best describes an electron?
a)
It has no charge and about the same mass as a proton.
b)
It has a negative charge and much less mass than a proton
c)
It has a positive charge and much more mass than a neutron.
d)
It has a negative charge and about the same mass as a neutron.
11.
An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the atom's nucleus?
a)
+25
b)
+30
c)
-25
d)
-30
12.
Which of these best describes one of the subatomic particles that could be found at location X in the model of an atom shown above?
a)
It has mass but no charge.
b)
It has no mass and a positive charge.
c)
It has a large mass and a negative charge.
d)
It has no mass and an equal number of positive and negative charges.
13.
An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in this atom?
a)
120
b)
50
c)
48
d)
0
14.
If an atom has six positively charged subatomic particles, which of the following must it also have in order to become a neutral atom?
a)
Twelve protons
b)
Six neutrons
c)
Three electrons
d)
Six electrons
15.
A model of an atom is shown above. An atom of which element is represented by this model?
a)
Boron (B)
b)
Carbon (C)
c)
Neon (Ne)
d)
Sodium (Na)
16.
Which of the above models of an atom represents a reactive metal?
a)
A
b)
B
c)
C
d)
D
17.
Which of the above models of an atom represents a stable atom that will no react?
a)
A
b)
B
c)
C
d)
D
18.
The atoms of a certain element each contain 9 protons and 7 valence electrons. Which statement correctly identifies this element and describes its' chemical reactivity?
a)
The element is lithium, and it is highly reactive.
b)
The element is fluorine, and it is not very reactive
c)
The element is lithium, and it is not very reactive.
d)
The element is fluorine, and it is highly reactive.
19.
A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment?
a)
Nitrogen (N)
b)
Sulfur (S)
c)
Arsenic (As)
d)
Silicon (Si)
20.
An element has a metallic-gray appearance. It also has the properties of both a metal and a nonmetal. In which section of the periodic table indicated above would the element most likely be found?
a)
1
b)
2
c)
3
d)
4
21.
Which two elements on the periodic table are in the same period?
a)
Sn and Rb
b)
F and Cl
c)
K and Ba
d)
Se and Te
22.
Which of the following atoms will have the most similar properties to the image above?
a)
Helium
b)
Boron
c)
Carbon
d)
Magnesium
23.
This element has 20 neutrons and 19 negatively charged particles
a)
Kr
b)
K
c)
Rb
d)
Xe
24.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
Electrons and megatrons
25.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
26.
Valence electrons are found in the ______ energy level.
a)
Farthest in
b)
Middle
c)
Outermost
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