CHEM 104 FinaL Exam Latest Updated 2024
___________is the study of the composition, structure, properties,
and reactions of matter
Chemistry
___________ is the space occupied by a substance.
volume
_________ in the metric and SI systems is based on the meter
length
The _____ of an object is a measure of the quantity of material it
contains
mass
The SI unit for mass is ?
kilogram
What temperature is 0 degree Celsius in kelvin
232
one centimeter cubed has how many cc and how many mL?
1 and 1, they are the same
density =
mass/volume
The atomic number for an isotope is on __________ and the atomic
mass of an isotope is on ________
bottom; top
A radioisotope is a _____________+________________
radiation+stable isotope
Name the 4 different types of radiation
,-Alpha Particles
-Beta Particles
-Positron
-Gamma Rays
Alpha particles are?
Alpha particles are?
Describe the Alpha Particle symbol
Beta Particles are?
high energy electrons
Describe the Beta Particle symbol
Positrons are?
the opposite of beta
Describe the Positron symbol
β+ or
Gamma Rays are?
high energy radiation, no mass and no charge
Describe the Gamma Ray symbol
Nuclear Reaction must be _____ on both sides
equal
Describe half life
The time it takes for radiation to decrease to 50% its life span
Alpha decay is?
the decay of a nucleus by emitting an ⍺ particle
Beta decay is?
the decay of a nucleus by emitting a β particle
Positron emission is?
the decay of a nucleus by emitting a positron
, Gamma emission is?
the decay of a nucleus by emitting gamma rays
describe nuclear fission
Nuclear Fission occurs when a neutron is added making an unstable
isotope that then splits up into 2 smaller nuclei and 3 neutrons
Nuclear Fusion occurs at what temperature
100 million degrees
Nuclear Fusion combines ________ nuclei into _______ nuclei plus
one ______
small; large; neutron
Nuclear Fusion commonly occurs in ______ and ________
suns; stars
it is rare to encounter ___________ atoms
individual
Describe the Octet Rule
a main group element is especially stable when it possesses 8 electrons
in its outer shell
Ionic compounds are formed when combining _________ and
____________
metals and nonmetals
an ion is a an atom or molecule with a _________ ___________ due
to the loss or gain of one or more electron
net charge
cations are _________ charged ions
positively
anions are ________ charged ions
negatively
___________is the study of the composition, structure, properties,
and reactions of matter
Chemistry
___________ is the space occupied by a substance.
volume
_________ in the metric and SI systems is based on the meter
length
The _____ of an object is a measure of the quantity of material it
contains
mass
The SI unit for mass is ?
kilogram
What temperature is 0 degree Celsius in kelvin
232
one centimeter cubed has how many cc and how many mL?
1 and 1, they are the same
density =
mass/volume
The atomic number for an isotope is on __________ and the atomic
mass of an isotope is on ________
bottom; top
A radioisotope is a _____________+________________
radiation+stable isotope
Name the 4 different types of radiation
,-Alpha Particles
-Beta Particles
-Positron
-Gamma Rays
Alpha particles are?
Alpha particles are?
Describe the Alpha Particle symbol
Beta Particles are?
high energy electrons
Describe the Beta Particle symbol
Positrons are?
the opposite of beta
Describe the Positron symbol
β+ or
Gamma Rays are?
high energy radiation, no mass and no charge
Describe the Gamma Ray symbol
Nuclear Reaction must be _____ on both sides
equal
Describe half life
The time it takes for radiation to decrease to 50% its life span
Alpha decay is?
the decay of a nucleus by emitting an ⍺ particle
Beta decay is?
the decay of a nucleus by emitting a β particle
Positron emission is?
the decay of a nucleus by emitting a positron
, Gamma emission is?
the decay of a nucleus by emitting gamma rays
describe nuclear fission
Nuclear Fission occurs when a neutron is added making an unstable
isotope that then splits up into 2 smaller nuclei and 3 neutrons
Nuclear Fusion occurs at what temperature
100 million degrees
Nuclear Fusion combines ________ nuclei into _______ nuclei plus
one ______
small; large; neutron
Nuclear Fusion commonly occurs in ______ and ________
suns; stars
it is rare to encounter ___________ atoms
individual
Describe the Octet Rule
a main group element is especially stable when it possesses 8 electrons
in its outer shell
Ionic compounds are formed when combining _________ and
____________
metals and nonmetals
an ion is a an atom or molecule with a _________ ___________ due
to the loss or gain of one or more electron
net charge
cations are _________ charged ions
positively
anions are ________ charged ions
negatively
