Download File - Science with Mr Thompson

Name ________________________________ Period _____ Lesson # _____ Date _________
REM: ATOMS ARE VERY VERY VERY VERY small
Atomic Structure Model and Theory
Sub-atomic
particle name
Electron
Proton
Neutron
Charge of
the subatomic
particle
Location of the
sub-atomic
particle in the
atom
Relative mass of
the sub-atomic
particle
compared to a
proton
Function of the sub-atomic particle.
Other important facts about the
sub-atomic particle
Name ________________________________ Period _____ Lesson # _____ Date _________
REM: ATOMS ARE VERY VERY VERY VERY small
Atomic Structure Model and Theory
Sub-atomic
particle name
Charge of
the subatomic
particle
Location of the
sub-atomic
particle in the
atom
Negative -
In shells or
orbitals or
clouds on the
outside of the
atom very very
far away from
the nucleus.
(at least 500m
away from
‘football’
nucleus)
In the center,
called the
nucleus.
With the
neutrons.
Electron
Positive +
Proton
Neutral 0
Neutron
In the center,
called the
nucleus.
With the
protons.
Relative mass of
the sub-atomic
particle
compared to a
proton
Almost 0, zero
mass.
1/1860th of a
proton
(Energy not
mass?)
1
1
Function of the sub-atomic particle.
Makes the ‘surface’ of atom, cause it
to be ‘hard’.
React or not react with other atoms
in different ways.
Bonding or not!
Can be a ‘glue’ … or not!
Other important facts about the
sub-atomic particle
Organized in shells from the
inside of the atom to the outside
a bit like orbits around the sun
(solar system model).
2, 8, 8, (18), 8 etc.
Move VERY VERY fast.
Random probability in a cloud.
(Cloudy with meatballs model)
The number of electrons = the
number of protons because
atoms are always neutral (+ = -)
The number of protons is called the
The number of protons = the
Atomic number. The atomic number number of electrons because
(protons) defines the type of element atoms are always neutral (+ = -)
or atom. The number of protons
makes the atom the type it is.
8 protons = oxygen
79 protons = gold
The number of neutrons AND
Adding or removing neutrons
protons together is called the Mass
will change the mass of an atom
number.
but NOT the type of atom it is.
The number of neutrons AND
Carbon atoms always have 6
protons together gives the atom a
protons (atomic #) but can have
particular mass.
6 or 7 or 8 neutrons. (mass # of
The number of neutrons make the
12, 13 or 14)
atom stable or unstable (Radioactive) These are called ISOTOPES of
each other