WorksheetsNuclear chemistry- Int. Sci
Total questions: 34
Worksheet time: 21mins
A nuclear reaction is the result of
the nucleus of a cell changing
electrons bonding between atoms
A nucleus of an atom changing or decaying
substances exploding
The emission of a particle or energy from an unstable nucleus is
nuclear decay
nuclear fission
nuclear fusion
nuclear membrane
Stars are the result of gravitational pull on gases and
nuclear fission
nuclear decay
nuclear membrane
nuclear fusion
The main sequence portion of a starts life is when
Iron goes through nuclear fission
A star explodes violently
Hydrogen fuses into helium
Elements up to uranium can be made
The death of our star will result in a
black hole
neutron star
white dwarf
worm hole
Uranium-235 will break apart when hit with a neutron is an example of
Nuclear fusion
Nuclear fission
Nuclear membrane
Nuclear decay
A fusion reaction that will result in a release in energy would be
From H to Fe
From Fe to U
From Fe to H
From U to Fe
A fission reaction that will result in a release in energy would be
From H to Fe
From Fe to U
From Fe to H
From U to Fe
A fission reaction that would require energy to be put in is
From H to Fe
From Fe to U
From Fe to H
From U to Fe
A fusion reaction that would require energy to be put in is
From H to Fe
From Fe to U
From Fe to H
From U to Fe
Nuclear reactions that emit a helium nucleus is
beta decay
alpha decay
electron capture
gamma decay
The portion of a stars life that will result in the element Uranium being created is
Main sequence
Giant phase
Nebula
Supernova
The element Gold is created during the portion of a stars life known as
supernova
main sequence
giant
neutron star
A Beryllium-8 fuses with a Beryllium-9 to result in a
Oxygen-16
Chlorine-17
Oxygen-17
Chlorine-16
The element Fe is mostly created during which portion of a stars life?
Giant
Supernova
Main sequence
Neutron star
The type of particle that is the same charge and mass as an electron
Alpha
Beta
Gamma
Electron capture
Humans use nuclear fission to
create heat to turn a turbine
make electrons from radioactive isotopes for electricity
test inhabitable areas
fuse hydrogen into helium
Nuclear power plants under normal use
Create chemical air polution
Create chemical water polution
Create harmful radiation fallout
None of the above
The type of nuclear emission that is electromagnetic radiation is
alpha
beta
gamma
electron capture
Unstable isotopes will decay until
are completely destroyed
are an atom on the band of stability
Don't pick this option
change into an isotope of the same type of element.
The type of decay that results in an element two atomic below is
alpha
Beta
Gamma
Electron capture
The type of decay that results in one element above
alpha
beta
gamma
electron capture
There isn't a lot of information from the largest elements of the periodic table because
They will immediately fuse elements around them
They are only created from a star
They are so large that we don't have ways measure them
They often exist for very short amounts of time
the largest elements of the periodic table are created
in particle colliders
in the sun
as a result of fission
as a result of gamma decay
Neptunium will beta decay into
Uranium
Americium
Thorium
Plutonium
Uranium will alpha decay into
neptunium
curium
polonium
thorium
79198Au ---> 80198Hg +_____?
-10e
24He
00Ɣ
159296Uqn
96247Cm + 2040Ca ---> ______?
76204Os
86204Rn
116287Lv
96247Cm
When elements are changed to make new elements no matter the means of doing so is called
Fusion
Fission
Transmutation
Nuclear Decay
The time it takes for half of a radioactive isotope to decay is called
half decay time
30 seconds
isotope decay time
half-life
A radioactive isotope starts off with a certain amount is allowed to decay. When measured again there is only 1/8th the amount. How many half-lives went by
1 half-life
2 half-lives
3 half-lives
8 half-lives
A 10 gram radioactive isotope goes through 2 half-lives. How much is now left?
10 g
5 g
2.5 g
none of it
A 200 gram radioactive isotope sample has a half-life of 4 days. When measured again there is 12.5g left. How much time has passed?
16 days
8 days
4 days
1 day
What would Carbon-14 be appropriate to age?
Age of Dinosaur bones
Age of the Earth
Age of first societies
Age of the first plants
