The nuclear force becomes very strong if the nucleus contains a large number of nucleons
option 3 cannot be possible
to slow down the neutrons to thermal energies
Graphite and heavy water are two common moderators used in a nuclear reactor. The function of the moderator is to slow down the neutrons to thermal energies
n-type semiconductor
When arsenic is added as an impurity to silicon, the resulting material is n-type semiconductor
absorbing neutrons
Cadmium rods are used to absorb neutrons in nuclear reactors, because cadmium is neutron absorber.
The fuel required for fusion is readily available in abundance from seawater.
Thermonuclear fusion?is a way to achieve?nuclear fusion?by using extremely high temperatures. There are two forms of thermonuclear fusion:?uncontrolled, in which the resulting energy is released in an uncontrolled manner, as it is in?thermonuclear weapons?such as the hydrogen bomb, and?controlled, where the fusion reactions take place in an environment allowing some of the resulting energy to be harnessed for constructive purposes. This article focuses on the latter.