_________ is used as a moderator in a nuclear reactor

In the nuclear decay given below

the particles emitted in the sequence are

In any fission process the ratio

Which of the following is not conserved in the nuclear reaction?
a. mass number
b. atomic number
c. fundamental particles
d. charge number

When an atom undergoes decay, its atomic number is ______

Curie is a unit of ______

The SI unit of activity of a radioactive substance is _______

Complete the nuclear reaction

The dependence of binding energy per nucleon (B_N) on the mass number A is represented by

What is missing in the nuclear reaction?

In nuclear reactors, the controlling rods are a mode of _______

The nuclei  and  can be described as

Radioactive material has a half-life of 10 days. What function of the material would remain after 30 days?

A nuclear event is shown in the diagram.

a. Name the nuclear phenomenon.
b. What happens to the residual nucleus? Explain.

Z, A, and M represent the atomic number, mass number and rest mass of a nucleus.
a. What is this mass difference called?
b. Give the relation.