Show:
Vocbulary
Nucleus
Decay
Technology
WILD
100
Series of repeated fission reactions caused by the release of additional neutrons in every fission reaction
What is chain reaction
100
Keeps particles of a nucleus together
What is strong force
100
3 radioactive particles
What is alpha paricles, beta particles, gamma rays
100
Equipment used to detect nuclear radiation.
What is Geiger counter.
100
The lady that died of Leukemia after working with and studying radioactive elements for many years
What is Marie Curie
200
A particle composed of 2 protons and 2 neutrons
What is alpha particle
200
Describes atoms with the same number of protons but a different number of neutrons
What is isotopes
200
All nuclei with more than 82 protons
What is radioactive
200
Tracer and beta particles are similar...
What is Tracers are isotopes that emit nuclear radiation. Some tracers emit beta particles.
200
Can pass through several centimeters of Lead.
What is Gamma Rays
300
The force that causes protons and neutrons to be attracted to each other
What is strong force
300
Makes up the nucleus
What is protons and neutrons
300
Happens in a nucleus during beta decay
What is number of protons increases
300
When beta particle pass through the geiger counter...
What is electric currents in the wire will be produced and the geiger counter will click
300
The charge of an alpha particle
What is +2
400
A neutron decays into a proton and an electron is emitted
What is beta decay
400
The difference between the forces in a small nucleus to the forces in a large nucleus
What is particles in small nucleus are close and attracted together. Particles in large nucleus are spread apart and are not attracted to one another through the strong force.
400
Why high temperatures are needed for fusion reactions to occur but not fission reactions
What is Fusion reactions require positively charged nuclei to be pushed together against their mutually repulsive forces. Fission reactions do not need to be pushed together.
400
Why Half-life of isotopes is important to medical field
What is if the half life is too short it could decay before it reaches the part of the patient's body if it is too long it could remain in the patient's body causing harm
400
Penetration of radiation particles is important why?
What is the medical and health risks associated with people being exposed
500
When Uranium-238 changes into Thorium-234 it is decay but what does it also represent
What is transmutation
500
Relation of radioactivity to strong force
What is radioactivity occurs when the strong force cannot overcome the electric force and the nucleus expels matter and energy.
500
How much energy is emitted from 75kg?
What is 6.8 X 10^18J
500
Half-life of iodine-131 is 8 days how much of a 5.0g sample is left after 32 days?
What is four half lives pass in 32 days. 5.0/2^4=.31g
500
What occurs when radiation enters a person's body?
What is ionization of cells