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Stack #38655 Word Scramble

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Question	Answer
alpha particle	weakest type of nuclear radiation
artificial transmutation	changing by one element into another by unnatural means, involves bombarding a nucleus with high energy particles to cause change
gamma ray	high-frequancy electromagnetic wave released during gamma decay; strongest type of nuclear radiation
beta particle	electron, created in the nucleus of an atom released during beta decay
binding energy	energy associated with the strong nuclear force that holds an atomic nucleus together, related to the stability of a nucleus
decay series	sequence of steps by which a radioactive nucleus decays into a nonradioactive nucleus
half-life	amount of time it takes for half the atoms in a given sample of an element to decay
radioactive decay	process in which a nucleus spontaneously emits particles or rays to become lighter and more stable
radioactivity	release of energy and matter that results in changes of a nucleus in an atom
tracer	radioactive element whoes pathway can be followed through the steps of a chemical reaction or industrial process
transmutation	process in which one element changed into another as a result of changes in the nucleus
critical mass	The smallest mass of a fissionable material that will sustain a nuclear chain reaction at a constant level.
nuclear chain reaction	series of fission reactions in which an acid combines with a base to form a salt and water
nuclear fission	splitting of an atomic nucleu into two smaller nuclei of approximately equal mass
nuclear fussion	joining of two atomic nuclei of smaller mass to form a single nucleus of larger mass
nuclear reactor	any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements
transuranium element	element formed sythetically; has more than 92 protons in its nucleus