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
viktelen [127]
3 years ago
12

How does carbon-14 dating work?

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

Answer:

Plants and animals assimilate carbon-14 from carbon dioxide throughout their life. When they die, they stop exchanging carbon with the biosphere and their carbon-14 content begins to decrease at a rate determined by the law of radioactive decay.

Radiocarbon dating is basically a method designed to measure residual radioactivity.

Explanation:

Carbon-14 is a weakly radioactive carbon isotope; It is also known as radiocarbon, and is an isotopic stopwatch.

Radiocarbon dating is only applicable to organic materials and some inorganic materials (not applicable to metals).

Proportional gas counting, liquid scintillation counting, and accelerator mass spectrometry are the three main methods of radiocarbon dating.

The radiocarbon, or carbon-14, is an isotope of the carbon element that is unstable and weakly radioactive. The stable isotopes are carbon-12 and carbon-13.

Carbon 14 is continuously formed in the upper atmosphere by the effect of cosmic ray neutrons on nitrogen-14 atoms, rapidly oxidizing in the air to form carbon dioxide and entering the global carbon cycle.

Accelerator mass spectrometry (AMS) is a modern method of radiocarbon dating that is considered the most efficient way to measure the radiocarbon content of a sample. In this method, the content of carbon-14 is measured directly in relation to carbon-12 and carbon-13 present. The method does not take into account beta particles, but the number of carbon atoms present in the sample and the proportion of the isotopes.

You might be interested in
Explain how a paleontologist might use relative dating techniques to determine the age of a fossil.
Serggg [28]
As far as I know, radioactive dating is the measure of radioactive substances in a fossil or something. Like the fossils have a radioactive substance in them, it is the only thing that can show how long the fossils been aging, therefore being able to show the date. And thats how radioactive dating works, and that is how a paleontologist uses it
4 0
3 years ago
What is the function of spines on cacti
soldier1979 [14.2K]

The spines of the cactus have several functions, which are the following:

To defend them from possible predators: inside the body of the plants there is a great deal of water; if herbivores could access it, these plants would not survive.

To provide them with shade: it is true that not much, but it is enough so that the loss of water by evaporation is minimal.

Reflect sunlight: many species have white spines.

8 0
2 years ago
methanogens ·extreme halophiles ·lack a nucleus and cell organelles ·cell walls do not contain peptidoglycan These characteristi
Ugo [173]
Its the archaea domain 

7 0
3 years ago
Read 2 more answers
¿por que se conoce como seres vivos a algunos elementos de la naturaleza desde la cosmovision andina?
Naya [18.7K]

Answer:

si

Explanation:

6 0
3 years ago
First to answer gets brainliest
jeka57 [31]

Answer:

The answer is <u><em>D)</em></u>

Explanation:

Viruses depend on the host cells that they infect to reproduce. ... When it comes into contact with a host cell, a virus can insert its genetic material into its host, literally taking over the host's functions. An infected cell produces more viral protein and genetic material instead of its usual products.

3 0
3 years ago
Read 2 more answers
Other questions:
  • In Africa, dragon color is co-dominant. The colors blue and yellow are co-dominant.
    13·1 answer
  • All BUT one is a function of the cell wall. That is
    10·1 answer
  • Biome1: ________Tropical Savannah____________
    14·1 answer
  • If a decision was made to drain wetlands for agricultural reasons, which statement is false?
    7·2 answers
  • What situation might develop in a population having some plants whose flowers open at midday and other plants whose flowers open
    8·1 answer
  • How does the shape and size of the continents today help support the Theory of Continental Drift? (5pts)
    15·2 answers
  • What do you think would be the most challenging aspect of collecting and analyzing hair samples​
    8·1 answer
  • 5. In the following picture, label each of the letters<br> with what is occuring
    6·1 answer
  • ¿Qué importancia tiene la declaración y protección de las reservas de la biosfera?
    8·1 answer
  • Unlike skeletal muscle action potentials, cardiac muscle action potentials __________.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!