Font size
S
M
L
XL
WorksheetsAll About Atoms
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is an atom?
a)
the smallest unit of life
b)
the smallest unit of matter
c)
anything that has mass and takes up space
d)
anything that has mass and gravity
2.
The 3 subatomic particles are ____________, ________________, and _____________ .
a)
protons, neutrons, and quarks
b)
protons, volume, and electrons
c)
protons, neutrons, and carbon
d)
protons, neutrons, and electrons
3.
What kind of particle(s) significantly contribute(s) to the mass of an atom?
Select all the apply
a)
proton
b)
neutron
c)
electron
4.
An atomic number of 8 means the atom has ________ protons.
a)
7
b)
8
c)
16
d)
88
5.
How many electrons are in Gold
a)
79
b)
118
c)
197
d)
276
6.
How many Neutrons are in Neon
a)
10
b)
21
c)
20
d)
30
7.
In the development of the atomic theory, who used the atomic shooting gallery and discovered the nucleus?
a)
Bohr
b)
Rutherford
c)
Dalton
d)
Thomson
8.
Isotopes of an element have a different number of...
a)
Protons
b)
Neutrons
c)
Electrons
d)
Mass
9.
Potassium-39 has how many neutrons?
a)
19
b)
18
c)
20
d)
21
10.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
Reset
