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WorksheetsProtons, Neutrons, and Electrons
Total questions: 36
Worksheet time: 22mins
Name
Class
Date
1.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
2.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
3.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
4.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
5.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus
d)
Electrons
6.
The smallest particle of an element that shows all the properties of that element.
a)
Subatomic Particles
b)
Atom
c)
Quarks
d)
Gluons
7.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
8.
Discovered the neutron within the atom
a)
Democritus
b)
Thomson
c)
Rutherford
d)
Chadwick
9.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
10.
A proton is a _____ charged particle.
a)
Negatively
b)
Positively
11.
An electron is a _____ charged particle.
a)
Positively
b)
Negatively
12.
Where are protons located in the atom?
a)
orbitals
b)
nucleus
c)
rings
d)
positive
13.
Where are neutrons located in the atom?
a)
shells/orbitals
b)
rings
c)
center
d)
nucleus
14.
The number of protons plus neutrons.
a)
Mass number
b)
Mass Weight
c)
Atomic number
d)
Atomic weight
15.
How many protons are in Beryllium?
a)
4
b)
9
c)
5
d)
2
16.
What is the atomic mass of helium
a)
4
b)
2
c)
6
d)
1
17.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
18.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
19.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
20.
What is letter “C”. pointing to?
a)
Neutron
b)
Proton
c)
Electron
d)
Atom
21.
What is letter “B” pointing to?
a)
Neutron
b)
Proton
c)
Electron
d)
Atom
22.
Carbon has how many protons?
a)
12
b)
6
c)
7
d)
4
23.
Bromine has how many neutrons?
a)
35
b)
80
c)
45
d)
55
24.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
25.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
26.
Protons and Electrons balance the charge of an atom.
a)
True
b)
False
27.
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
28.
What particle uniquely identifies an element?
a)
Number of Valence Electrons
b)
Number of Protons
c)
Number of Electrons
d)
Atomic Mass
29.
What subatomic particle is positively charged and is located inside of the nucleus?
a)
Proton
b)
Neutron
c)
Electron
d)
Ion
30.
Which one of these is NOT located in the element square on the Periodic Table?
a)
Atomic Number
b)
Atomic Mass
c)
Room Temperature
d)
Chemical Symbol
31.
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.
32.
Electrons have this type of charge?
a)
negative
b)
positive
c)
neutral
33.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
34.
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
35.
The charge of a neutron in an atom.
a)
positive
b)
negative
c)
neutral
d)
+1
36.
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
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