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WorksheetsAtomic Particles Review
Total questions: 29
Worksheet time: 20mins
Name
Class
Date
1.
The nucleus of an atom contains which subatomic particles?
a)
protons and electrons
b)
protons and neutrons
c)
electrons and neutrons
d)
protons, electrons, and neutrons
2.
Typically in an atom, which two subatomic particles are equal in number?
a)
protons and neutrons
b)
all subatomic particles are equal in number
c)
neutrons and electrons
d)
protons and electrons
3.
Which subatomic particle is counted to determine the type of element the atom represents?
a)
proton
b)
neutron
c)
electron
d)
boron
4.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
5.
How many neutron are in the atom "K"?
a)
29
b)
19
c)
58
d)
20
6.
The atomic number is equal to _.
a)
the number of protons and electrons
b)
the number of neutrons only
c)
the total number of protons and neutrons
d)
the number of protons neutrons and electrons
7.
Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...
a)
ion
b)
mixture
c)
isotope
d)
neutral atom
8.
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.
9.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
10.
An atom that has gained or lost electrons is called ...
a)
a winner
b)
an isotope
c)
an ion
d)
a loser
11.
When an atom loses an electron, it becomes a
a)
positive ion
b)
negative ion
c)
neutral ion
d)
neutral atom
12.
What is the atomic mass of Neon?
a)
10
b)
20.18
c)
10.18
d)
30.18
13.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
14.
How many neutrons does a Hydrogen atom have?
a)
1
b)
2
c)
3
d)
0
15.
How many electrons does an atom of Krypton have?
a)
36
b)
83.80
c)
47.80
d)
119.80
16.
How many protons are present in phosphorus-31
a)
15
b)
16
c)
31
d)
46
17.
Found in the nucleus of the atom
a)
electrons only
b)
protons only
c)
neutrons and protons
d)
neutrons and electrons
18.
How many neutrons does this isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
19.
What does the 6 represent above the C
a)
Symbol
b)
Name
c)
Mass Number
d)
Atomic Number
20.
Atomic mass - Atomic Number =
a)
protons
b)
neutrons
c)
electrons
d)
Average Mass
21.
Protons and neutrons are found in the....
a)
energy levels
b)
nucleus
c)
space
d)
Bohr Model
22.
Which of the subatomic particles is the lightest
a)
all have the same mass
b)
protons
c)
neutrons
d)
electrons
23.
Which of the subatomic particles is the heaviest?
a)
electrons
b)
protons
c)
neutrons
d)
protons and neutrons have equal mass
24.
The relative mass of an electron is...
a)
1
b)
2
c)
0
d)
3
25.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
26.
An atom with atomic number 6 would have how many protons?
a)
6
b)
12
c)
3
d)
cannot be determined
27.
A negatively charged particle that moves around the nucleus is a(n)
a)
proton
b)
neutron
c)
electron
d)
quark
28.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
29.
Most of an atom's mass is found in the
a)
electrons.
b)
nucleus.
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