1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ahrayia [7]
1 year ago
6

If the nuclide has a half-life of eight days, what mass of the nuclide remains in the patient at 6:00 p.m. the next day? (assume

no excretion of the nuclide from the body.)
Physics
1 answer:
svlad2 [7]1 year ago
3 0

half life = 8.0 days = 8 * 24 = 192 hr

we know,

half life = 0.693 / K

192 hr = 0.693 / K

K = 3.609 * 10^-3 hr-1

time from 8.00 AM to next day 10.00 pM = 38 hr

Now,

ln (I0 / I) = K * t or

ln (1.6 / I) = 3.609 * 10^-3 * 38 or

I = 1.39 ug

mass of the nuclide remains in the patient = 1.39 ug

We know that half life = 0.693 / K  

                       Half life = 8.0 days (8 ×24)

                   192 hours = 0.693 / K

Consequently, 32 hours pass between 8 AM to 6 PM the following day.

<h3 />

Which nuclide has the longest and shortest half life time?

  • Bismuth-209 (209Bi), a radioisotope of bismuth, has the longest half-life of any radioisotope that undergoes -decay that is currently known (alpha decay). Currently, gold is the heaviest stable monoisotopic element, while lead-208 is the heaviest stable nucleus.
  • Fluorine (9F) has 18 known isotopes, with ages ranging from 13 to 18.
  • Fluorine is a monoisotopic and mononuclidic element since only fluorine-19 is stable and is present in nature in amounts greater than trace amounts.
  • Due to 209Bi's extraordinarily long half-life, it is still possible to treat it as if it were non-radioactive for practically all purposes. It poses a negligible radiation risk because its radioactivity is far lower than that of human flesh.
  • The longest half-life of any radionuclide to have been experimentally identified is that of tellurium-128 (128Te), whose half-life is projected to be 7.7 1024 years through double decay. However, 209Bi still holds the record for alpha decay (double beta decay).

To learn more about nuclide and half life time ,visit:

brainly.com/question/2036074

#SPJ4

You might be interested in
What kinds of space and matter can light travel through
dem82 [27]

Answer:

Light travels as a wave. But unlike sound waves or water waves, it does not need any matter or material to carry its energy along. This means that light can travel through a vacuum—a completely airless space. (Sound, on the other hand, must travel through a solid, a liquid, or a gas.)

Explanation:

3 0
3 years ago
Read 2 more answers
What are the functions of the female reproductive system?
gulaghasi [49]

The female reproductive system is designed to carry out several functions. It produces the female egg cells necessary for reproduction, called the ova or oocytes. The system is designed to transport the ova to the site of fertilization.

7 0
3 years ago
A system is best defined as?
erma4kov [3.2K]

Answer:

a group of organs working together to perform a function.

Explanation:

6 0
3 years ago
Read 2 more answers
After 16.5 s, a jogger’s displacement is 200.0 m. What is her average velocity in m/s? In km/h?
vivado [14]

Answer:

12.12 m/s

Explanation:

3 0
2 years ago
Explain why ventilation is very important if there is risk of exposure to random gas in your home school
bonufazy [111]
Ventilation is very important because it helps remove the gas form people’s homes and schools and it redirects the random gas outside so it is less likely to hurt people
3 0
3 years ago
Other questions:
  • A small grinding wheel is attached to the shaft of an electric motor which has a rated speed of 3600 rpm. When the power is turn
    14·1 answer
  • Select three standard units of the metric system.
    7·1 answer
  • Two equal forces are applied to a door. The first force is applied at the midpoint of the door; the second force is applied at t
    13·1 answer
  • Explain each stage of communication process​
    10·1 answer
  • Why is the earth Round
    12·2 answers
  • The _______ is responsible for determining the frequency of vibration of the air column in the tube within a wind instrument.
    10·1 answer
  • If an amplitude modulation (AM) has an amplitude modulating signal of 0.5 V and carrier amplitude of 1.3 V, what is the modulati
    7·1 answer
  • Kara is pushing a shopping cart to the right. The gravitational force is acting ________.
    7·1 answer
  • 2 part question
    5·1 answer
  • Calculate the acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!