spectra are produced from electrons gaining energy and moving up energy levels
What is absorption spectra?
100
nuclear reaction is also called.......
What is transmutation?
100
the time required for one half of the radioactive nuclei in a sample to spontaneously decay
What is half life?
100
nucleus absorbs a neutron and forms a highly unstable isotope that break up almost instantaneously
What is fission?
100
Devices used to track subatomic particles
What is cloud chamber & bubble chamber?
200
Experiment which led to theory that atom contains discrete positive and negative charges
What is cathode ray tube by J.J. Thomson?
200
a nuclear reaction is a reaction in which one element is ............. into.......... element.
What is converted, another?
200
units used to describe the amount of a radioactive material
What is LOTS of things as long as the same units (ie: mass, number of atoms, percent, decays/second, becquerels, counts per minute, activity, etc.)
200
reaction which happens in stars and requires a high amount of energy to occur.
What is fusion?
200
a particle which was predicted and then years later detected in the hadron-collider
What is Higgs-Boson particle?
300
When an atom emits a photon the electron in the atom will move......
What is down to a lower energy orbit?
300
Beta negative decay products
What is proton, electron (negative beta) and antineutrino?
300
Radium-226 has a half-life of 1600 years. After 8000 years what is the number of half lives that occurred?
What is 5?
300
theory which states that mass can be converted into energy and vice versa
What is mass-energy equivalence?
300
requirements to study subatomic particles by breaking atoms apart.
What is high-energy particle accelerators?
400
Rutherford revised the atomic model to explained that electrons moved in a/an ............... motion.
What is circular orbit?
400
Type of product from a nuclear reaction but it is not a nuclear reaction by itself
What is gamma radiation?
400
Radium-226 has a half-life of 1600 years. What percentage of a sample of radium-226 will remain after 8000 years?
What is 3.125%?
400
What is the energy equivalence of a neutron at rest (in MeV)?
What is 9.39 MeV?
400
quark composition of a neutron
What is one up quark and two down quarks?
500
Rutherford's model can not be entirely corrected when incorporating Maxwells theory due to the fact that the electrons would.................................
What is emit EMR and spiral into the nucleus?
500
the two principles used to determine if nuclear reactions are correct and balanced.
What is conservation of nucleons & conservation of charge?
500
Carbon-14 has a half-life of 5730 years. There is initially 25.00 grams of Carbon-14 to begin with. After 13304 years, how much Carbon-14 remains?
What is 5.000 grams?
500
the energy that is produced when an electron-positron pair annihilate (in J)
What is 1.64x10^-13 J?
500
Four forces of nature
What is strong nuclear, electromagnetic, weak nuclear, & gravitational?