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Radioactivity1

Sarah 9th grade Physical Science

QuestionAnswer
alpha particles made of 2 neutrons and 2 protons steels the matter's electrons very big
beta particles electron ejected from nucleus steals the matter's electrons
gamma rays electromagnetic waves that are emitted from the nucleus no mass, no charge, travel at speed of light
neutron emission a neutron is ejected from the nucleus results in fission no charge
nuclear forces force which acts between protons and neutrons, holding the nucleus together
stable nuclei perfect number of neutrons to balance out the protons
unstable nuclei too many or not enough neutrons to balance protons or atoms with more than 83 protons will decay
nuclear fission process of the production of lighter nuclei from heavier nuclei
special theory of relativity E=mc^2 mass converted to energy and vice versa
chain reaction occur as result of nuclear fission
critical mass the minimum mass of a radioactive substance in which a nuclear chain reaction can occur
nuclear fusion light nuclei are combined to form heavier nuclei
acid high hydronium
hydronium Hv3O+
base high hydroxide
hydroxide OH-
Created by: laura_miller
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