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WorksheetsAtoms Protons
Total questions: 21
Worksheet time: 13mins
Name
Class
Date
1.
Which two subatomic particles are found in the NUCLEUS of at atom?
a)
protons & nuetrons
b)
protons & electrons
c)
neutrons & electrons
d)
electrons & protons
2.
What type of subatomic particles are found in the cloud?
a)
neutrons
b)
electrons
c)
protons
d)
reactions
3.
Which type of subatomic particles have the LEAST amount of mass?
a)
protons
b)
electrons
c)
neutrons
d)
nucleus
4.
What gives an atom mass?
a)
Protons & electrons in the nucleus
b)
electrons in the cloud
c)
protons & neutrons in the nucleus
d)
Protons & electrons in the cloud
5.
How are elements distinguished from one another?
a)
The number of valence electrons
b)
The number of neutrons
c)
The number of protons
d)
How they react with other elements
6.
The number of protons is equal to
a)
the atomic number
b)
the number of neutrons
c)
the energy levels
d)
the periodic table groups
7.
How many neutrons does Na have?
a)
11
b)
23
c)
22
d)
12
8.
How many protons does this element have?
a)
40
b)
21
c)
20
d)
41
9.
What determines an elements identity?
a)
electrons
b)
periodic table
c)
protons
d)
mass
10.
The subatomic particle with a neutral charge is:
a)
protons
b)
electrons
c)
neutrons
d)
cloud
11.
If an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?
a)
positive
b)
negative
c)
neutral
d)
imaginary
12.
If an atom has 24 protons and 24 electrons, what is the atomic number of this element?
a)
24
b)
48
c)
0
d)
42
13.
What is the atomic mass of an element with 40 protons, 40 electrons, and 46 neutrons?
a)
80
b)
6
c)
86
d)
Not enough information
14.
What is the atomic number of this atom?
a)
3
b)
4
c)
7
d)
1
15.
What is the atomic mass for this atom?
a)
17
b)
18
c)
35
d)
1
16.
What is the atomic number of Fe? (click to see image)
a)
26
b)
55.845
c)
56
d)
None of these
17.
The atomic mass is equal to _.
a)
the number of protons only
b)
the number of neutrons only
c)
the total number of protons and neutrons
d)
the number of protons, neutrons, and electrons.
18.
The atomic number is equal to _.
a)
the number of protons only
b)
the number of neutrons only
c)
the total number of protons and neutrons
d)
the number of protons neutrons and electrons
19.
How do you find the neutrons?
a)
Atomic mass - atomic number
b)
Atomic number- Atomic Mass
c)
Atomic number
20.
What is the symbol for Hydrogen?
a)
H
b)
Hy
c)
Hd
21.
What is the symbol for Helium?
a)
He
b)
H
c)
Hel
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