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Nuclear Chemistry
Page 5
Questions (324)
What are some applications of Nuclear Chemistry in Medicine?
So far I've found - X-rays - Radioactive tracers - Gamma radiation
1 answer
asked by
william
445 views
The half life of plutonium is 250 years. If the starting mass is 750g find; An equation that models the mass of plutonium P(t)
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asked by
Micheal
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A 100mg sample of beryllium 11 decays by 4.9% of its previous mass every second.Determine the half life of beryllium-11(hint:the
1 answer
asked anonymously
38 views
Given the following nuclear reaction:
Column A 1. What is the atomic mass of the new atom?: What is the atomic mass of the new
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asked by
e
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The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.7% of the uranium in the original sample is present, what length of
4 answers
asked by
Anonymous
438 views
The amount of time it takes for half of a sample to disappear is:
a fission b half-life c fusion d nuclear chemistry
1 answer
asked by
e
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Given the following nuclear reaction:
223/87 Fr 0/-1e + a/z X Column A 1. What is the atomic mass of the new atom?: What is the
1 answer
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Which statement about the number of protons and neutrons in a nuclear change is correct?(1 point)
Responses The total charge
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Question
Which statement about the number of protons and neutrons in a nuclear change is correct?(1 point) Responses The total
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Why does the emission of an alpha particle always result in transmutation?(1 point)
The atom is converted to helium. The atom is
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A lab has 40 mg of radioactive iodine. After 24 days there are only 5 mg remaining. What is
the half-life of the iodine?
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The half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is 4.463×1011 years longer. What is the
1 answer
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Which event always results in an increase in the total number of protons?
Beta decay Redox Transmutation Alpha decoy
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Which event always results in an increase in the total number of protons?
Beto decay Redox Transmutation Alpha decoy
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Use the equation to complete the activity.
219 86Rn→215 84Po+α The nuclear equation shows the transmutation of a form of radon
1 answer
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Which quantity is the same before and after a nuclear change?(1 point) Responses total charge total charge atomic mass of each
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Sam is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is 4.5×109 years. The half-life of
1 answer
asked by
ANSWER CORRECTLY
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Sam is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is 4.5 x 10^(9) years. The half-life of
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Sam is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is 4.5 × 10° years The half-life of
1 answer
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The half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is 4.463 x 10^(5) years longer. What is
1 answer
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17 views
Sam is comparing the half life of two isotopes of uranium. The half life of uranium-238 is 4.5x10^9 years. The half life of
1 answer
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33 views
The half life uranium- 235 is 700,000,000 years. The half life uranium- 238? The answer should be in decimal form.
1 answer
asked by
Mason
9 views
The half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is 4.463×1011 years longer. What is the
1 answer
asked anonymously
6 views
The half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is 4.463×10^11 years longer. What is the
1 answer
asked by
li rye
25 views
The half life of uranium 235 is 700,000,000 years. The half life of uranium 238 is 4.463x10^11 years longer. What is the half
1 answer
asked anonymously
17 views
he half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is 4.463×1011 years longer. What is the
1 answer
asked anonymously
18 views
Actinium is a radioactive soft metal that glows light blue in the dark. The isotope actinium-228 has a half-life of about 21.77
1 answer
asked by
Hana
13 views
Which statement about the number of protons and neutrons in a nuclear change is correct?
The total charge before and after the
1 answer
asked anonymously
22 views
When transmutation occurs, (2 points)
* 2 points one type of atom changes into a different type of atom. one isotope of an atom
1 answer
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When transmutation occurs, (2 points)
* 2 points one type of atom changes into a different type of atom. one isotope of an atom
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13) Which of the following types of nuclear changes is a form of induced transmutation?
* 1 point alpha decay fission beta decay
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help me with this Complete the following nuclear equation and give the name, atomic number, and mass number of isotope X made by
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21 views
What is artificial transmutatiom
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When Carbon-14 (^{14}{6}C) undergoes beta decay, it forms Nitrogen-14 (^{14}{7}N) and an electron (e^-) along with an electron
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13 views
can you help me with this .
20 Iodine – 125 emits gamma rays when it decays to Tellerium-125 and has a half-life of 60 days. If
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can you help me with this .
20 Iodine – 125 emits gamma rays when it decays to Tellerium-125 and has a half-life of 60 days. If
1 answer
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can you help me with this Write a balanced nuclear equation for the decay of mercury-178 by positron emission.
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can you help me with this Write a balanced nuclear equation for the decay of lead-210 by ß emission.
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can you help me with this Write a balanced nuclear equation for the decay of nobelium-251 by a emission.
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can you help me with this
what is the isotope symbol for this Complete and balance each of the following nuclear equations. Part
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Barium – 122 has a half-life of 2 minutes. Suppose you obtain a sample weighing 100.0 g and it takes 14 minutes to set up an
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Nuclear waste is
A the energy from nuclear fission that is converted to thermal energy. B the bonds that hold the nuclei of atoms
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Which fact is true during a fission chain reaction?(1 point)
Responses The number of freely-moving neutrons decreases over time.
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How is fission different from a simple chemical reaction?(1 point)
Responses Fission reactions run out of control, while chemical
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an isotopes half life
a is the time required for half the mass to decay into another element b cannot be changed by chemical
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Large amounts of energy are required to join two atoms into a single nucleus and, in turn, create a new element. What is the
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According to the diagram, what is the half-life of the cobalt-57 isotope?
A. 10 days B. 24 days C. 50 days D. 120 days
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A thyroid cancer patient is given a dosage of ^131I (half-life = 8.1 d). What fraction of the dosage of 131I will still be in
1 answer
asked by
Truth
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Tritium (half-life = 12.3 yr) is used to verify the age of expensive brandies. If an old brandy contains only 1/64 of the
1 answer
asked by
Truth
14 views
polonium has a mass number of 212 and an atomic number of 84. in a balanced nuclear reaction, polonium releases an alpha
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13 views
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Parent Categories (7)
Chemistry
Physical Science
Physics
Radioactive Isotopes
Science
Science and Technology
Science Education