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
frozen [14]
3 years ago
12

HELP ME PLEASE! List the steps scientists for using technology to find the half-life of an isotope.​

Biology
1 answer:
liubo4ka [24]3 years ago
6 0

For radioactive materials with short half-lives, you use a very sensitive calibrated detector to measure how many counts per second it is producing. Then using the exact same set up you do the same at a latter time. You use the two readings and the time between them to determine the half-life. You don’t have to wait exactly a half-life, you can do the math with any significant time difference. Also, you don’t need to know the absolute radioactivity, as long as the set up is the same you only need to know fraction by which it changed.

For radioactive materials with long half-lives that won’t work. Instead you approach the problem differently. You precisely measure the mass of a very pure sample of the radioactive material. You can use that to calculate the number of atoms in the sample. Then you put the sample in a counter that is calibrated to determine the absolute number of disintegrations happening in a given time. Now you know how many of them are disintegrating every second. You use the following equations:

Decays per Second = (Number of Atoms) x (Decay Constant)

Half-life = (Natural Log of 2) / (Decay Constant)

And you can calculate the half-life

Hope it helps :)

Mark it as brainliest pls :)

You might be interested in
Which of the following is typically found as part of the prokaryotic genome?
SSSSS [86.1K]

Plasmids, they are mostly found in bacterial cells and they r the cause of antibiotic resistance in bacteries :)

8 0
3 years ago
Can anyone say me the answer please ​
pickupchik [31]

Answer:

The answer to this question is B

3 0
3 years ago
Jayden is researching the Earth's
Juliette [100K]

Answer:

Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth's mantle. Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat.

3 0
2 years ago
Where are all lemurs find
DIA [1.3K]

Answer:Madagascar

Explanation:Lemurs are primates found only on the African island of Madagascar and some tiny neighboring islands. Because of its geographic isolation, Madagascar is home to many amazing animals found nowhere else on Earth.

8 0
3 years ago
Read 2 more answers
A new and effective antibiotic becomes widely used for a particular species of bacteria. After some time, an antibiotic-resistan
s2008m [1.1K]
Antibiotic resistance happens when an antibiotic lost its ability in controlling or killing bacterial growth. At this moment the bacteria are already resistant to the antibiotic and are multiplying even though the drug is present. This is a natural phenomenon.
4 0
3 years ago
Other questions:
  • If a specific kind of protein is not continually used by a cell, the gene for that protein is
    11·1 answer
  • What are the four most important elements in living things
    15·1 answer
  • A living thing that produces offspring is known as a(n) (organism or population).
    12·1 answer
  • What is a cyclical disturbance
    14·1 answer
  • the video refers to “cosmic pinball” taking place in the region surrounding Earth in the early days of the solar system. What do
    9·1 answer
  • Why do scientists break earth's history down into smaller pieces​
    5·1 answer
  • What 6 organelles help transport proteins inside the human cell?
    6·1 answer
  • TRUE/FALSE: In the elongation stage of Transcription, the mRNA sequence elongates as RNA polymerase moves along the DNA
    9·1 answer
  • Which type of fossil is formed by sediments and found in sedimentary rock?
    12·2 answers
  • What are endotherms , no links please ,thank you
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!