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WorksheetsThe Structure of the Atom
Total questions: 42
Worksheet time: 25mins
Name
Class
Date
1.
Electrons have virtually no mass (weight).
a)
True
b)
False
2.
What is the atomic number?
a)
The number of protons in an element
b)
The number of neutrons in an element
c)
The number of protons and neutrons.
d)
The number of protons and electrons.
3.
What is the atomic number of an element with 12 protons, 13 neutrons and 12 electrons? Hint: Use the periodic table!
a)
12
b)
13
c)
25
d)
24
4.
How many protons are in an atom of carbon?
a)
12.01
b)
8
c)
6
d)
14
5.
What is the name of the atom in the picture. Hint: Look at the proton # and then use the periodic table
a)
Carbon
b)
Silicon
Calcium
Calcium
c)
aluminum
Sodium
Sodium
d)
Calcium
Silicon
Silicon
6.
Which is an electron?
a)
A
b)
B
c)
C
7.
Which is a proton?
a)
A
b)
B
c)
C
8.
Which is a neutron?
a)
A
b)
B
c)
C
9.
An element can be defined by the number of ___________ in the nucleus of its atoms.
a)
protons
b)
neutrons
c)
electrons
d)
atoms
10.
What parts of the atom make up most of its mass?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons
11.
What is the atomic mass number?
a)
the number of protons in an element
b)
the number of neutrons in an element
c)
the number of protons and neutrons
d)
the number of protons and electrons
12.
What is the mass of a neutron?
a)
about 1/1800th of an amu
b)
0 amu
c)
1 amu
d)
2/3 amu
13.
Where are protons located in an atom?
a)
nucleus
b)
electron cloud
c)
neutron
d)
who knows?
14.
Where are neutrons located within an atom?
a)
nucleus
b)
electron cloud
c)
neutron
d)
who knows?
15.
Where are electrons located in an atom?
a)
nucleus
b)
electron cloud
c)
neutron
d)
who knows?
16.
The number of protons is equal to the
a)
atomic mass
b)
atomic number
c)
atomic structure
d)
atomic link
17.
An atom's protons and neutrons are concentrated in a dense, central region called the...
a)
electron cloud
b)
nucleus
c)
proton
d)
neutron
18.
The nucleus of the atom is considered to have _________________.
a)
A Neutral charge
b)
A negative charge
c)
A positive charge
19.
How many valence electrons are there in this atom?
a)
2
b)
13
c)
3
d)
0
20.
What is the name of the atom in the picture. Hint: Use the periodic table.
a)
Carbon
b)
Oxygen
c)
Aluminum
d)
Cobalt
21.
Which of the lewis models is for carbon?
a)
1
b)
2
c)
3
d)
4
22.
Which of these is the correct definition for subatomic?
a)
An atom
b)
Bigger than an atom
c)
Smaller than an atom
d)
Anything relating to an atom
23.
Which of these things would be considered subatomic?
a)
Copper
b)
Electron
c)
Water molecule
d)
Oxygen
24.
The process when liquid water from earth's surface changes to water vapor.
a)
condensation
b)
evaporation
c)
precipitation
d)
runoff
25.
The process when liquid water from earth's surface changes to water vapor.
a)
condensation
b)
evaporation
c)
precipitation
d)
runoff
26.
What part of the water cycle can carry pollutants from your yard to streams and rivers?
a)
evaporation
b)
runoff
c)
precipitation
d)
condensation
27.
_______ is the universal solvent because it dissolves most substances.
a)
Oxygen
b)
Water
c)
Salt
d)
Gatorade
28.
What follows evaporation during the water cycle? How does this occur?
a)
Water evaporates into water vapor
b)
Water vapor condenses and forms a cloud
c)
Water precipitates to the ground
d)
Water runs down into the hydrosphere
29.
Look at the picture. What is B?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
30.
Look at the picture. What is A?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
31.
The subatomic particles that make up neutrons and protons are called __________.
a)
Groupons
b)
Mendelev
c)
Nucleus
d)
Quarks
32.
What is A?
a)
Solid
b)
Liquid
c)
Gas
33.
What is B?
a)
Solid
b)
Liquid
c)
Gas
34.
What is C?
a)
Solid
b)
Liquid
c)
Gas
35.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
36.
All matter is made of what?
a)
energy
b)
atoms
c)
electrons
d)
compounds
37.
How many of these substances are elements?
a)
2
b)
3
c)
4
d)
5
38.
Atoms are the ______ building blocks
a)
Largest
b)
Smallest
39.
What is the atomic number of Neon
a)
89
b)
73
c)
10
d)
12
40.
Do Electrons Carry Positive or Negative Charges
a)
Positive
b)
Negative
41.
Which Is Carbon
a)
C
b)
Ca
c)
Ch
d)
Jk
42.
What is Carbons Atomic Number
a)
8
b)
89
c)
6
d)
50
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