Radioactivity Flashcards
1
Q
What’s a half life
A
Time it takes for the number of radioactive Nucli of the isotope to half
2
Q
What’s beta plus decay
A
Protons are converted to neutrons and positron
3
Q
What’s beta minus decay
A
A neutron changes into a proton and the electron leaves the atom with high energy
4
Q
What’s background radiation
A
No obvious source of radiation but it’s detected
5
Q
What to nuclear powers station workers use
A
Film badge
6
Q
What’s alpha decay
A
When an unstable nucleus changes is it decays or emits gamma radiation
7
Q
When is alpha decay emmited
A
When a nucleus looses a proton and neutron or alpha particle
8
Q
What are some parts of a Geiger muller
A
Has a continuous power supply
Gas atoms become ions
Circuit is not continuous so electrons go through low pressure gases
