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Chapter16Atomic

atomic energy

QuestionAnswer
the process by which an unstable nucleus gives off nuclear radiation radioactinity
radioactivity was discovered by Henri Becquerel
radioactive decay is the same as.. radioactivity
a particle that consists of 2 protons and 2 neutrons alpha particle
in the nuleus of a helium atom alpha decay
alpha decay travels the......... shortest distance
what type of decay has the least penetrating power? alpha decay
particle consists of an electron or positron. beta decay
in alpha decay the atomic number ________ decreases 2
in alpha decay the _____________ decreases by 4 mass number
a beta particle comes from the breakdown of a _________ neutron
a beta particle travels ________ than a alpha particle greater
A beta partile has greater penetrating power than ________ alpha particle
the mass number __________ in a beta particle stays the same
in a beta particle the atomic number in creases by ____ one
ray is pure light or energy gamma ray
in a gamma ray the ___________ changes energy level
in gamma decay there is _________ to the substance no change
sickness, cell damage, cancers, and damage to building structures are all __________ radiation causes
can use radiation for cardon dating of _______ fossils
use radioactive tracers to cheak out function of internal organs nuclear medicine
can use radioactive ___________ to find leaks in pipes. isotopes
form of a element with the same atomic number but different numbers of neutrons isotopes
the amont of time it takes for half of a radioactive substamce to decay half life
Created by: Notions4Sabrina
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