Res #____
Nuclear Energy: Nuclear Structure and Radioactivity
Integrated Science 3
Name:
I. Review – Periodic Table
A. Atomic Number
 The number of _____________ in the ______________ of the atom
B. Atomic Mass
 The sum of the mass of _____________ and ____________in the atom
 # of _____________ = atomic _____________ - atomic __________
II. Review – Atomic Structure
A. Atomic Structure
 Atoms contain ____________, ____________, and _____________
B. Isotopes
 The number of _____________ in an atom is not always the
_____________!
 Atoms of the _____________ elements that have an _____________
number of neutrons are called _____________
III. Radioactivity
A. Definition:
12/15
Per:
Draw and label the Periodic Table
representation of a carbon atom.
Draw and label the atom as presented.
B. Description of the process:
 Isotopes and large atoms are _______________________________
______________________________________________________
 New, lighter atoms are _____________, releasing ____________ in
the process
 Unstable atoms will ______________________________________ until they become stable
IV. Radiation
A. Definition:
B. Types of Radiation:
Alpha Particle ()
Radiation
Description
(appearance,
charge, mass)
• ___________ of a
___________ atom
Beta Particle ()
• High speed ____________
Gamma Ray ()
• High energy _____________
____________
• Charge of __________
• Charge of ________
• ________________ mass
• _______ charge
• __________________ mass
Alpha decay occurs because the nucleus
has too many protons which causes
excessive repulsion. An alpha particle
is emitted to reduce this.
Beta decay occurs when the neutron to
proton ratio is too great and causes
instability. A beta particle is emitted,
converting a neutron into a proton.
Gamma decay occurs because the
nucleus is at too high an energy. A
gamma ray is emitted as the nucleus
falls to a lower energy state.
• The atomic # of the decaying
• The atomic # of the decaying
• The atomic number and mass
atom ___________________
atom ___________________
of the decaying atom
and the mass _____________
and the mass _____________
__________________________
• Mass of ________
Decay
Process
Impacts on
Decaying
Atom
Diagram of
Decay
Symbol
2
V. Energy Generated From Nuclear Fission
A. Definition:
B. Description of the process

A large atom is struck by a _____________ _____________

Fission products include smaller ___________, _____________,
and _____________energy

_____________ is the most common _____________ used to
generate useable nuclear energy in power plants
VI. Energy Generated from Nuclear Fusion
A. Definition:
B. Description of the Process:

The mass of the _________________ is less than the sum of the masses of the individual nuclei.
____________________________________________________!

Takes place continuously in the _______________________ (H is converted into He).

For energy production on earth, the nuclei of two isotopes of
_____________ are used: Deuterium and Tritium
C. Energy Released from Nuclear Fission

10 grams of _______________ which can be extracted from
500 liters of _____________ could produce enough fuel for the
lifetime electricity needs of an average person in an
industrialized country.

Do we use fusion to generate electricity?
3