NEW
Font size
S
M
L
XL
WorksheetsAtoms
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
2.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
3.
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
4.
The central region of an atom where its neutrons and protons are is called the
a)
nucleus
b)
electron cloud
c)
core
d)
center
5.
electrons have this type of charge?
a)
negative
b)
positive
c)
neutral
6.
These particles orbit around the nucleus of an atom. What are they called?
a)
electrons
b)
protons
c)
neutrons
d)
photons
7.
What are the 3 subatomic particles of an atom?
a)
carbon atom, proton, electron
b)
quarks, neutrons, protons
c)
nucleus, protons, electrons
d)
protons, neutrons, electrons
8.
Generally, the number of neutrons ____ the number of protons in an atom.
a)
=
b)
<
c)
>
9.
Which subatomic particle has a positive charge?
a)
proton
b)
neutron
c)
electron
10.
Which subatomic particle has a neutral or no charge?
a)
proton
b)
neutron
c)
electron
11.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
12.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
13.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
14.
The atomic number of an elements is the total number of which particles in the nucleus?
a)
neutrons
b)
protons
c)
electrons
d)
protons and electrons
15.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons and Neutrons
b)
Protons only
c)
Electrons only
16.
What do protons, electrons and neutrons make?
a)
element
b)
compound
c)
atom
17.
What is the smallest piece of matter that still has properties of that matter?
a)
element
b)
atom
c)
proton
18.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
19.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
20.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
Reset
