Atomic Structure Flashcards
(7 cards)
1
Q
How can irradiation be harmful in the body?
A
- cell division can lead to cancer
- causes DNA to mutate
2
Q
Which types of radiation are most penetrating?
A
Gamma
Beta
Alpha
3
Q
Which types of radiation is the most ionising
A
Alpha
Beta
Gamma
4
Q
Define half life
A
Amount of time it takes for radioactive nuclei in a substance to half
5
Q
What precautions should you take when handling radiation.
A
Tongues
Gloves
Protective gear
Stay far away from substance
6
Q
What is the structure of an alpha particle and how does it change the element?
A
2 protons
2 neutrons
Atomic mass decreases by 2
Mass number decreases by 4
7
Q
How can beta radiation cause an element to change?
A
Atomic number increases by one
Mass number stays the same
One electron
