Radioactivity Flashcards
1
Q
What defines nuclear stability?
A
Ratio of protons to neutrons
2
Q
What is radioactive decay?
A
Random and spontaneous breakdown of an unstable nucleus
3
Q
What is the speed of an alpha particle?
A
Very slow
4
Q
What is the penetration power of an alpha particle?
A
Very weak
5
Q
What is the speed of a beta particle?
A
Very fast
6
Q
What is the penetration power of a beta particle?
A
Mild
7
Q
What is the penetration power of a gamma ray?
A
Very strong