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RADIOACTIVITY Word Scramble

 
 


 

 
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Question Answer
radioactive elementelements that emit alpha, beta or gamma radiation
alpha particletwo protons and two neutrons or a nucleus of a helium atom
beta particlean electron ejected by an atomic nucleus
gamma radiationextremely energetic form of radiation with no charge and no mass
strong nuclear forcevery strong force that holds the nucleus together
transmutationwhen one element changes to another by emitting an alpha or beta
half-lifetime needed for half the radioactive atoms to decay
fissionsplitting of atomic nucleus into parts; releases energy
chain reactionoccurs when the product of the reaction starts another reaction
fusionsmall nuclei fuse together producing energy