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Nuclear Chemistry
Page 4
Questions (324)
Use the equation to complete the activity.
219/86Rn -> 215/84Po+a The nuclear equation shows the transmutation of a form of radon
1 answer
asked anonymously
34 views
Use the equation to complete the activity.
219 86Rn→215 84Po+α The nuclear equation shows the transmutation of a form of radon
4 answers
asked anonymously
36 views
The half-life of 234U, uranium-234, is 2.52 105 yr. If 98.4% of the uranium in the original sample is present, what length of
2 answers
asked by
lance
903 views
It takes about 10^16 years for just half the samarium-149 in nature to decay by alpha-particle emission. Write the decay
2 answers
asked by
Phillip
953 views
AP Chem ----
Which type of radiation is emitted when chromium 51 decays into manganese 51? Show the nuclear equation that
3 answers
asked by
Dani
871 views
Suppose a laboratory has a 38 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of
7 answers
asked by
Joshua
2,756 views
Which option accurately describes how nuclear chemistry has affected society?
(Select all that apply) The ability to harness the
7 answers
asked by
Quinn
792 views
Neptunium 239
93 Np has a decay constant of 3.40 ×10-6 s-1. A 3.0-mg sample of Np-239 is prepared. The activity of the Np-239
2 answers
asked by
jay
794 views
The half-life of I-131 is 8.00 days. If a medical treatment involves a dose of 400. mg of I-131, how much of the isotope remains
3 answers
asked by
Tamera
780 views
1. Write balanced equations for each of the following processes.
a. Chromium- 51, which targets the spleen and is used as a
2 answers
asked by
Sharon
732 views
How long will it take for a 18.0-g sample of iodine-131 to decay to leave a total of 2.25 g of the isotope? The half-life of
3 answers
asked by
Jillian
718 views
A 25.40 g sample of water containing tritium,(3/1)H , emits 1450 beta particles per second. Tritium is a weak beta emitter, with
2 answers
asked by
Steven
729 views
a) Potassium-40 undergoes three different modes of radioactive decay (Beta decay, Positron decay, and Electron Capture decay).
1 answer
asked by
brett
712 views
What daughter isotopes are produced when a neutron combines with a nucleus of 235/92 U? Assume that three neutrons are also
3 answers
asked by
Anonymous
664 views
If a pair of carbon atoms were fused, and the product were to emit a beta particle, what element would be produced?
2 answers
asked by
Rob
683 views
The half-life of radon-222 is 3.8 days. How much of a 300 gram sample is left after 14.8 days?
2 answers
asked by
Anonymous
656 views
I am having trouble understanding what the concept is for writing these out. Write a balanced nuclear equation for the alpha
2 answers
asked by
ellie
667 views
Write a nuclear equation for the following:
Iodine 131 undergoes beta decay two times Plutonium 239 is an alpha emitter Th 234
1 answer
asked by
Jake
682 views
Complete each of the following nuclear equations:
a. 239/92U - ? + o/-1e b. 11/5B - 7/3Li + ? thank you!
2 answers
asked by
Pernell
675 views
Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount remains after 100 years?
2 answers
asked by
rachel
661 views
which statement about the balanced equations for nuclear and chemical changes is correct?
both are balanced according to the mass
1 answer
asked by
haven
86 views
the half-life of tritium is 12.26 y
what would be the decay of tritium atoms per second in 1.00 L of hydrogen gas at STP
2 answers
asked by
kiloa
569 views
How is fission different from a simple chemical reaction?(1 point)
Responses Fission reactions run out of control, while chemical
1 answer
asked anonymously
32 views
225/88 RA → 0/0 Y + blank/88 RA
The number in the box is ______ and this is a form of ________ decay.
1 answer
asked by
cyan
61 views
Nuclear Processes Unit Test
16 of 1816 of 18 Items Question Use the equation to complete the activity. 219 86Rn→215 84Po+α The
1 answer
asked anonymously
80 views
238/92 U → 4/2 HE + 234/90 blank
The number in the box is ______ and this is a form of ________ decay.
1 answer
asked by
cyan
38 views
Argon-39 decays to become Potassium-39. write the nuclear equation.
2 answers
asked by
John D
545 views
Enriched uranium is produced via gaseous diffusion of UF6. Suppose a process were developed to allow diffusion of gaseous
2 answers
asked by
Anonymous
571 views
Please help me explain How a nuclear reaction differs from a normal chemical reaction and give examples.
2 answers
asked by
Elie
540 views
The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.4% of the uranium in the original sample is present, what length of
2 answers
asked by
lady
549 views
how many grams of pure uranium can theoretically be extracted from 10.0kg sample of pitchblende which is 92.0%uo2
2 answers
asked by
Tamo
538 views
Iron-53 has a half-life of 8.51 minutes. After 15.0 minutes, 132 mg remain from the original sample.
a) What was the original
1 answer
asked anonymously
32 views
Iron-53 has a half-life of 8.51 minutes . After 15.0 minutes, 132 mg remain from the original sample.
a) What was the original
1 answer
asked anonymously
34 views
I need to know how much of a 2g sample of Technetium-99 would be left after 12 hours.
The half life of Technetium-99 is 6 hours
2 answers
asked by
Victoria
505 views
210 210
Pb --> Bi + ? 82 83 60 0 Co --> ? + e 27 -1 I need an explanation on how to find the missing product.
2 answers
asked by
andrew
519 views
The half-life of tritium is approximately 12 years. What will be the molar ratio of tritium to helium-3 in a sealed sampel after
2 answers
asked by
Laura
533 views
What is the complete decay series for 241 Am: show every alpha, beta and gamma decay product. What is the reason for beta and
2 answers
asked by
What?
532 views
Which statement about the number of protons and neutrons in a nuclear change is correct?(1 point) Responses The total atomic
4 answers
asked anonymously
38 views
An element of P and atomic Q emits an alpha particle from its nucleus thet resultant numbers of the new element formed are
2 answers
asked by
Roseline
496 views
Given a 800 mg sample of Thorium-231 decomposes via beta emission with a half life of 25.5 hours, how long would it take, in
2 answers
asked by
Lauren
496 views
radioactive disintegration is 1st order reaction. calculate the age of ancient wood piece if it shows a c14 activity of 20%
2 answers
asked by
pinky
493 views
How much time would it take for 5.2 x 105 atoms of fermium-253 (half-life 3 days) to decay to 6.5 x 104 atoms?
5 answers
asked by
Andrea
464 views
What exactly is transmutation?
2 answers
asked by
Will
464 views
A 7.500-mg sample of chromium-55 is analyzed after 14.0 min. and found to contain 0.469 mg of chromium-55. what is the half-life
3 answers
asked by
Jasmine08
482 views
? → 99mTc + β
1 answer
asked by
Bree
449 views
There are several technological applications for the transuranium elements (Z > 92). An important one is in smoke detectors,
1 answer
asked by
Jane
465 views
11. If 238U92 emits successively four alpha particles two beta particles, what will be the atomic number and mass number of the
3 answers
asked by
paresh Ghosh
487 views
which of the following has highest binding energy (nuclear chemistry)
Fe-56 , O-16 , H-3 , U-235 and explain why
1 answer
asked by
ahmed
456 views
If I have a sample from doing a half lfe lab with m&ms, not timed, just pulling out decayed or m&ms with rhe m on top, how do I
1 answer
asked by
lulu
465 views
If we ignore the small fraction of U-234, natural uranium has a concentration of 99.28 atom% of U-238 and 0.72% U-235. Their
3 answers
asked by
Jane
458 views
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Parent Categories (7)
Chemistry
Physical Science
Physics
Radioactive Isotopes
Science
Science and Technology
Science Education