vocab
what are the 3 main types of radioactivity
ALPHA,BETA,GAMMA
what is half life
Average time it takes for half the amount of a radioactive element to decay
Why isn't fusion used in power plants?
required temperatures are too high
founder of radium and polonium
who is marie curie
elements used in an atomic bomb
alpha, beta, gamma
what is the atomic mass
Weighted average of the masses of all isotopes of an element.
Thorium-234 has a half-life of 24 days, started with 100 g how much is left after 48 days?
What is 25 grams
what is a chain reaction
a sequence of reactions where a reactive product or byproduct causes additional reactions to take place.
this person discovered the neutron
least penetrating form of radiation
what is an alpha particle
what is atomic number
The number of protons in the nucleus of an atom of an element.
Plutonium-239 is 24,110 years how much of 100 g remains after 96,400 years?
What is 6.25 grams
which type of energy is the sun emitting
it results of nuclear fusion
named the father of nuclear chemistry
Otto Hahn
When can mass be converted to energy?
Only during a nuclear reaction
Nuclear Fusion is
what is The process in which two or more nuclei combine to form a larger nucleus ?
Radium-266 has a half life of 1599 years, how much of 15.0 mg is left after 6369 years.
What is 0.94 mg
What type of reaction does fission lead to
chain reaction
this person discovered the atom bomb
J. Robert Oppenheimer
the only downside of using fission as an energy source
nuclear waste
protons, neutrons, and electrons are located where in an atom ?
what is proton and neutron are located in the nucleus, and the electrons is located outside
Thorium-227 is 16 days, how many days are required for three-fourths to decay?
what is 32 days
natural occurrences of fission and fusion
fission reactions do not occur in nature normally, and fusion reactions occur in stars such as the sun
who discovered effusion
Thomas Graham
productive uses of nuclear chemistry
what are medicine,energy,food irradiation