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WorksheetsAtoms
Total questions: 24
Worksheet time: 14mins
Name
Class
Date
1.
The basic part of matter.
a)
Atoms
b)
Protons
c)
Neutrons
d)
Electrons
e)
Nucleus
2.
The particle of an atom without a charge that contributes 1 amu to the atomic mass.
a)
Atoms
b)
Protons
c)
Neutrons
d)
Electrons
e)
Nucleus
3.
The negatively charged particle of an atom.
a)
Atoms
b)
Protons
c)
Neutrons
d)
Electrons
e)
Nucleus
4.
The center of the atom that contains protons and neutrons.
a)
Atoms
b)
Protons
c)
Neutrons
d)
Electrons
e)
Nucleus
5.
The positively charged particle of an atom.
a)
Atoms
b)
Protons
c)
Neutrons
d)
Electrons
e)
Nucleus
6.
How many neutron are in the atom "K"?
a)
7
b)
2
c)
39
d)
20
7.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
8.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
9.
The charge of a neutron in an atom.
a)
positive
b)
negative
c)
neutral
d)
+1
10.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
11.
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.
12.
What subatomic particle is positively charged and is located inside of the nucleus?
a)
Proton
b)
Neutron
c)
Electron
d)
Ion
13.
What particle uniquely identifies an element?
a)
Number of Valence Electrons
b)
Number of Protons
c)
Number of Electrons
d)
Atomic Mass
14.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
15.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
16.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
17.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
18.
What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons?
a)
22
b)
11
c)
34
d)
23
19.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
20.
If the mass number of this chlorine atom is 36, how many neutrons does it have?
a)
17
b)
18
c)
19
d)
can't be determined
21.
The symbol for Carbon is
a)
6
b)
12.011
c)
C
d)
Ca
22.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
23.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
24.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
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