Radioactivity ❀

Question 1

What is Radioactivity?

Answer 1

Radioactivity is the spontaneous emission from the nucleus of certain atoms.

Question 2

What are the three types of emission?

Answer 2

The three types of emissions are:
-alpha particles (α) Helium nucleus, i.e, 2p & 2n
-beta particles (𝛽), high speed electrons
-gamma radiation (γ) electromagnetic waves, very short wavelength

Question 3

Where are the particles emitted from the atom?

Answer 3

These particles are emitted from the unstable nuclei of certain atoms.

Question 4

What is the range of penetration for an alpha particle?

Answer 4

The range of penetration is a thin sheet of aluminum or paper.

Question 5

What is the range of penetration of beta particles?

Answer 5

The range of penetration of beta particles is several cm of aluminum.

Question 6

What is the range of penetration of gamma particles?

Answer 6

The range of penetration of gamma particles are a few cm of lead.