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WorksheetsUnit 4 Review: Nuclear Chem
Total questions: 20
Worksheet time: 2hrs 40mins
Identify the number of neutrons in an atom of Cd-50.
2
4
48
50
Which statement best describes the shape and volume of hydrogen H2 (g) at STP?
It has no definite shape and no definite volume
Definite shape and definite volume
It has a definite volume and no definite shape
Which radioactive isotope is used to threat thyroid issues?
I-131
Co-60
C-14
What is an isotope?
Atom of same element with the same number of protons but different number of neutrons
Atom of same element with the same number of protons and same number of neutrons
Isotopes become unstable due to
ratio of protons to neutrons
ratio of neutron to electrons
ratio of electrons to protons
Identify a metal below
K
H
He
Ar
In which process is a nuclei splitting into lighter nuclei?
Fission
Fusion
Transmutation
The atomic mass of Iron (Fe) is the weighted average of
all the artificially produced isotopes of Fe
all the naturally occurring isotopes of Fe
the most abundance isotopes of Fe
Which process converts mass into energy?
fission and fusion
melting
Which change occurs during a nuclear fission reaction?
matter is converted into energy
temperature stays constant
isotopes begin to multiply
Which elements are malleable and ductile?
Metals
Nonmetals
Metalloids
Define transmutation.
when an element gets turned into another element
when one nuclei bombards another nuclei
Which of the following is a fission reaction?
Which of the following has the greatest penetrating power?
gamma
betta
alpha
Au-198 spontaneously decays when the
unstable nuclei emit betta particles
stable nuclei emit betta particles
Determine the total amount of heat required to boil 50 grams of water
16700
113000
Which of the following is a mixture?
C-12 has a mass of 12.89 amu with an abundance of 99% while C-13 has a mass of 13.99 amu with an abundnace of 1%. What is the set up to find the average atomic mass?
Complete the nuclear equation shown in this image
alpha particle
betta particle
gamma particle
Identify the decay mode of Ra-226
alpha
betta
