The Discovery Of Radiation And Nuclear Chemistry Page 2
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1
2Mr. Kortemeier
Chpt 7 Lecture notes
When nuclei give off either alpha or beta ________________. They change into a different
12.
___________________ because the number of _________________ changes. This can be called
radioactive _________________.
__________________________ Radiation is strong enough to knock electrons off of other
13.
atoms. This forms _______________________ (atoms with a + or a – charge)
When writing nuclear decay reactions we must obey the Law of ________________ of
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__________ and the Law of ________________ of _________________________.
In an atomic symbol, the subscript is the number of ___________________ or the
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___________________ on the periodic table. It always must match the chemical
__________________.
210
206
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84 Po -->
82 Pb + _______________
By nuclear process it is possible for a radioactive element to _____________ into another
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element. This the ancient alchemist's dream. It is now possible to turn a few atoms of lead into
gold. It would take a nuclear accelerator and millions of $, but it can be done.
In one _____________________, one half the amount of radioactive material will decay or turn
18.
into another element called a _______________________ product.
If an archaeologic sample was found to have 1/16 of the orginial carbon in it, it would take
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________________ half-lives
When nuclear fission or nuclear fusion takes place, some of the _________________ holding the
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atom together goes missing. This is known as the _________________ defect.
This mass is converted into pure energy . The amount of energy can be calculated by Einstein's
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famous equation _________ = _____________________.
Fusion takes light isotopes and makes them into _________________ atoms. This releases more
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energy per atom than _______________________.
Stars get their energy from __________________ and make new __________________.
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Stars die out when they produce _______________. It can't be _________________ or
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______________ to get energy out.
____________________ is the name of splitting heavy isotopes to form lighter ones. This is the
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power behind the _______________ bomb and _______________ power plants.
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