Radioactivity is the process in which unstable nuclei transfers to more stable nuclei. Radioactivity was first discovered during 1896 by the French scientist Henri Becquerel. Radiactive elements glows in the dark after exposure to light.

Some of the important questions and answers related to radioactivity are listed below:-

Worksheet Questions:-

1. The source of highest energy is:

(a)    U-235

(b)   Coal

(c)    Petrol

(d)   $CH_4$

2. Which are used as projectile in nuclear reactions?

(a)    $\alpha$

(b)   P

(c)    N

(d)   All of these

3. The power or speed of projectile can be increased by:

(a)    Cyclotron

(b)   Betatoron

(c)    Synchrotron

(d)   All of these

4. Rock dating method is used to find the age of:

(a)    Rock

(b)   Old wood

(c)    Fossils

(d)   All of these

5. Which is not correct here?

(a)    $P^{32}$ is used in treatment of leukemia

(b)   $I^{131}$ is used in treatment of thyroid gland

(c)    $CO_{-60}$ is used in treatment of cancer

(d)   None statement is incorrect here

1. (a)     2. (d)     3. (d)     4. (a)     5. (d)

Related posts:

1. Neutralization A chemical reaction is a process of transforming one set...
2. Projectile Motion Worksheets Projectile Motion: When an object is thrown making an angle...
3. Chemical measurement, Significant figures and S.I. units worksheet Chemical measurement, Significant figures and S.I. units worksheet: Here are...
4. Atoms and Molecules Worksheets Atoms and Molecules worksheets The atom is a unit of...
5. Molecular mass , moles and atoms worksheet Molecular mass , moles and atoms worksheet: Here are some...