WorksheetsMrs. Pegg Atoms Vocabulary
Total questions: 13
Worksheet time: 41mins
Name
Class
Date
1.
The smallest unit of matter.
a)
molecule
b)
proton
c)
atom
d)
density
2.
The center of an atom --
a)
nucleus
b)
electron
c)
energy levels
d)
electron cloud
3.
What is the horizontal column on a periodic table called?
a)
Group
b)
Period
4.
What is the vertical column on a periodic table called?
a)
Group
b)
Period
5.
What is the negative subatomic particle of an atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
6.
The # of protons = the # of --
a)
electrons
b)
neutrons
c)
atoms
d)
molecules
7.
Carried by electrons --
a)
neutral charge
b)
positive charge
c)
negative charge
8.
Carried by protons --
a)
positive charge
b)
negative charge
c)
neutral charge
9.
Most of the mass of an atom is found it its _____.
a)
electron cloud
b)
nucleus
c)
atomic number
d)
empty space
10.
The atomic number of an element tells the number of _____ in the nucleus of an atom of that element.
a)
protons
b)
neutrons
c)
electrons
d)
isotopes
11.
Which one of the following parts of the atom is the smallest?
a)
atom
b)
neutron
c)
quark
12.
Which one of the following parts of the atom is the smallest?
a)
neutron
b)
nucleus
c)
atom
13.
What part of the atom is indicated by the red sphere?
a)
nucleus
b)
electron cloud
c)
electrons
d)
neutrons
100 %
