What is
Subatomic Particles
What is fusion
Combining smaller nuclei together to form larger nuclei
The time for half the radioactive nuclei in any sample to undergo radioactive decay
Half-life
Type of radioactive particle used to take xrays when you go to the hospital
beta particle
What are three disadvantages to nuclear power plants?
Answers will vary
What is the term for the spontaneous process in which an unstable atomic nucleus loses energy by emitting radiation, such as alpha particles, beta particles, or gamma rays?
Radioactive decay
Why isn't fusion used in power plants?
required temperatures are too high
if you start with 100 grams of plutonium-239, which has a half-life of 24,110 years, how much of it would remain after 96,400 years?
6.25
Radioactive particle with a charge of -1
beta
Least penetrating form of radiation
What is an alpha particle
A high-energy photon is emitted from the radioactive nucleus.
Gamma Particle
What are the downsides of using fission as an energy source
Nuclear waste danger of out of control chain reaction
Imagine you have this stuff called Radium-266. It's kind of like candy that keeps disappearing. Each time, it takes about 1600 years for half of it to vanish. If your sample has gone through that disappearing act three times, how old is it now?
4800 years
What radioactive particle has a mass and charge of 0?
gamma ray
What type of reaction does fission lead to?
chain reaction
A negatively charged particle that spins around the outside of the nucleus.
Electron
Productive uses for nuclear chemistry
what are medicine, energy, food irradiation.
So, we've got this thing called Thorium-227, right? It's like this funky substance that starts off strong but gradually fades away. It's got a half-life of 25 days, meaning every 25 days, half of it disappears. Now, if this stuff has been vanishing into thin air six times already, how many days old is our sample now?
150 days
Rank the radioactive particles in order from least dangerous to most dangerous
alpha, beta, gamma
Describe the relationship that exists between mass and energy in the equation E=mc^2
a small amount of mass can produce a large amount of energy
A Type of physical interaction that occurs between electrically charged particles
Electromagnetic forces
What is......
LOSE POINTS
Alright, so we're dealing with Thorium-234 here, which is kind of like a mysterious substance that fades away over time. Its half-life is 24 days, meaning every 24 days, half of it disappears. Now, if you start with a sample of 100 grams, how much of it will be left after 48 days?
What is 25 grams
In a nuclear reaction, when a neutron collides with an atom, sometimes the nucleus captures the neutron and becomes a heavier isotope. What term is used to describe this process?
neutron absorption or Neutron capture
breaking a large nucleus into smaller nuclei
Fission