Nuclear Fission 1
A nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
Nuclear Fission
The word Fusion comes from
Latin
Nuclear fission is also called
Radioactive decay
What is always coming, but never arrives?
tommorrow
Isotopes of an element have a different number of
Neutrons
Nuclear Fission does produce particulate air pollution like fossil fuels and coal.
False
The one with a ¨u¨ in it
Nuclear Fusion
Isotopes are...
different versions of elements
What can be broken, but is never held?
a promise
Potassium-39 has _____ Neutrons
20
Neutrons come from
the fission of U-235 our fuel
Two nuclei with low masses are combined to form one nucleus of larger mass
Nuclear Fusion
The mass of the product is less than the organic nucleus
True
What word would you use to describe a man who does not have all his fingers on one hand?
Normal, because people usually have half their fingers on one hand.
You calculate mass numbers by
protons+neutrons
The process in which heavy nuclei are split into two or more lighter nuclei
Nuclear Fission
A chain reaction is
a sequence of reactions where a reactive product or by/product additional reactions to take place
Several nuclei and neutrons
What is it that if you have, you want to share me, and if you share, you do not have?
a secret
Strong forces are stronger than electric forces
False
Neutrons look like
Nothing... they are invesible
Heavy water is
a form of water that contains a larger amount of hydrogen isotopes deuterium
Extra mass of the neutron causes the radioactive nucleus to...
Split apart, forming lighter elements, free neutrons, and great quantities of energy.
If a plane crashes on the border between the United States and Canada, where do they bury the survivors?
Survivors are not buried.
electron and protons always have the same number of atomic particles
True