|what was Ernest Rutherfold results in the gold foil experiment on the alpha particles?||He observed that alpha particles were undeflected and passed through the gold foil|
|what was Ernest Rutherfold conclusion?||the positive nucleus is very small compared to the size of the atom. So the atom is mostly empty space, so most of the alpha (α) particles were able to pass straight through the gold foil.|
|What is radioactive activity?||it is the number of nuclei of that substance decaying per second|
|what are the four types of ionizing radiation?||Alpha, Beta, Gamma and X-ray|
|_________ has the smallest rest energy||an electron|
|The mass of an electron is ______ than that of a proton||less than of a proton|
|Volumes of atomic nuclei are proportional to the _______||mass number|
|what is the binding energy of a nucleus?||it is the energy that must be supplied to separate the nucleus into its constituent nucleons|
|How can you tell if materials have used nuclear fuel?||The presence of fission products and the presence of trnauranic isotopes|
|The two emissions are ______ and ______||line and continuous spectra|
|Continuous spectrum is produced by ______||an incandescent solid or liquid|
|Line spectrum is produced by ______||it is produced by atoms when the atoms of a gas has enough energy to give out colored light|
|what is alpha radiation?||It is the fast moving helium nuclei ejected from the nuclei of radioactive atoms|
|what is beta radiation?||it is the high speed electrons ejected from the nuclei of radiation atoms|
|what is gamma radiation?||it is the high frequency electromagnetic radiation emitted from the nucleus of a radioactive atom|
what was Ernest Rutherfold results in the gold foil experiment on the alpha particles?
what was Ernest Rutherfold conclusion?
What is radioactive activity?
what are the four types of ionizing radiation?
_________ has the smallest rest energy
The mass of an electron is ______ than that of a proton
Volumes of atomic nuclei are proportional to the _______
what is the binding energy of a nucleus?
How can you tell if materials have used nuclear fuel?
The two emissions are ______ and ______
Continuous spectrum is produced by ______
Line spectrum is produced by ______
what is alpha radiation?
what is beta radiation?
what is gamma radiation?