1. NUCLEAR FUSION
Process of combining two light nuclei to
form a heavier nucleus
The process occurs at a very high temperature.
There is mass defect in the reaction.
Mass defect change to nuclear energy.
This process also occurs on the sun surface.
At the end of the process,it produces ;
One heavier nucleus
One neutron
Nuclear energy

2. NUCLEAR FUSION
Hydrogen-2 +
+ energy
neutron
Helium
Hydrogen-3

3. H He n NUCLEAR FUSION + + energy
EQUATION OF NUCLEAR FUSSION H 2 1 3 He 4 n +
+ energy
H-2 = a.m.u
H-3 = a.m.u
He-4 = a.m.u
n = a.m.u
Calculate the nuclear energy produced in the process above.

4. H He n NUCLEAR FUSION + + energy EQUATION OF NUCLEAR FUSSION 2 1 3 4+
+ energy
Mass before =
Mass after =
= a.m.u
= a.m.u
Mass defect = –
= a.m.u
= x 1.66 x 10-27
H-2 = a.m.u
H-3 = a.m.u
He-4 = a.m.u
n = a.m.u
= x kg
E = mc2
= x x (3 x 108)2
= 2.82 x J

5. PAST YEARS QUESTION
A large amount of energy is released when two light nuclei combine to form a heavy nucleus.
What is the name of the process ?
A. Chain reaction.
B. Nuclear reaction.
C. Nuclear fission.
D. Nuclear fusion.