NEW
Font size
S
M
L
XL
WorksheetsAtom Structure and Mass
Total questions: 14
Worksheet time: 8mins
Name
Class
Date
1.
The three main subatomic particles are electrons, protons and ____________.
a)
photons
b)
neurons
c)
neutrons
d)
quarks
2.
What are the two main parts of the atom?
a)
nucleus and cytoplasm
b)
nucleus and electron cloud
c)
core and electron cloud
d)
protons and neutrons
3.
In order for an atom to be neutral what has to be true?
a)
The atom has more protons than neutrons
b)
The atom has more neutrons than protons
c)
The atom has the same number of protons and neutrons
d)
The atom has the same number of protons and electrons
4.
What is the area in the atom around the nucleus called?
a)
electron cloud
b)
cytoplasm
c)
subatomic cloud
d)
cumulonimbus cloud
5.
What subatomic particles are located in the electron cloud?
a)
quarks
b)
protons
c)
electrons
d)
neutrons
6.
What is the standard unit of mass at the atomic level?
a)
centimeters
b)
millimeters
c)
amu
d)
milligrams
7.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
8.
A proton has approximately the same mass as a(n) _______________.
a)
straight pin
b)
quark
c)
electron
d)
neutron
9.
The atomic number represents the identity of the ________________.
a)
mass of the atom
b)
element
c)
electrons
d)
isotopes
10.
The proton number of an atom is equal to the _________________ of the atom.
a)
mass number
b)
atomic mass number
c)
atomic number
d)
neutron number
11.
The total number of protons and neutrons in an atom represent the __________________ of an atom.
a)
mass number
b)
atomic mass number
c)
isotopes
d)
electron cloud
12.
What is the electrical charge of a proton?
a)
1+
b)
1-
c)
neutral
d)
2-
13.
Which subatomic particle has a negative charge in the atom?
a)
proton
b)
neutron
c)
electron
d)
quark
14.
Atoms of the same element which have a different number of neutrons are called _________________.
a)
ions
b)
isotopes
c)
quarks
d)
molecules
Reset
