Fission and Fussion Flashcards
1
Q
Fission
A
Splits a larger atom into 2 or more smaller ones
2
Q
Fusion
A
Joins 2 or more lighter atoms into one
3
Q
What does an alpha particle contain
A
- high energy particle that contains 2 protons and 2 neutrons
- It has a +2 charge and a mass number of 4
- written as 4/2 He
4
Q
What does a beta particle contain
A
- high energy electron
- It has a -1 charge and a negligible mass compared to a proton
- written as 0/-1 e
- formed when a neutron is converted to a proton and an electron
5
Q
What is a positron
A
- antiparticle of beta
- has a +1 charge and is called a positive electron
- written as 0/+1 e
- formed when a proton is converted to a neutron
6
Q
Gamma rays
A
- High energy radiation released from a radioactive nucleus.
-They are a form of energy so they have no mass and no charge - They have a Y looking symbol
7
Q
Alpha emission
A
The decay of a nucleus by emitting an alpha particle.
8
Q
Where does fusion occur
A
At extremely high temperatures and pressures
9
Q
PET scans
A
uses radioiotopes which emits positrons which enable scanning of an organ
