Nuclear Transformation Powerpoint
Studied by 0 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/28
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
29 Terms
who first discovered radioactivity
henri becqurel
what part gives off the radiation of radioactivity of an element
the nucleus
what forms can radiation be a form of
particles, electromagnetic radiation, or both
which source does the radium affect most
beta
why does the radium source affect beta the most
because beta has a smaller mass
which source does the radium affect least
alpha
why does the radium source affect alpha the least
because it has the less mess
does the radium source affect the gamma
no because gamma has no mass or no charge
what is the mean or average life
lifetime for decay of radioactive atoms
how long is the mean life of an isotope times longer than its half life
1.443
how many elements are known today
118
how many elements know today occur natrually
92
what is an example of one of the 92 elements today that occurs naturally
uranium
the elements with a lower Z, tend to be _
stable
the elements with higher Z, tend to be _
radioactive
elements with Z greater than _are radioactive
82
what is usually nuclear fuel
uranium235
which process does the reactor make use of to provide power
fission
what is fission
process the reactor uses to provide power
how is the nuclear power produced in a reactor
by bombarding certain high-atomic number nuclei by neutrons
in fission, what happens to the nucleus after it absorbs the neutron
it splits into nuclei of lower atomic number as well as additional neutrons
how is our sources produced with nuclear reactors
bombarding nuclides in nuclear reactors or particle accelerators
fusion of _ into _ is the source of our sun’s energy
hydrogen nuclei into helium nuclei
is it possible to know when a particular atom will disintegrate
no
overtime, can you predict the proportion that will disintegrate in time; and why
yes because half life
what is the unit of activity in curie defined as
3.7 × 10^10 dps
what is dps
disintegration per second
the SI unit for activity is the becquerel defined as
1 dps
1 curie = _ BQ
37G
Note 
Flashcards (104)