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
sasho [114]
3 years ago
14

Which radioactive isotope is commonly used to date wooden artifacts?

Chemistry
1 answer:
sergey [27]3 years ago
3 0
Carbon 14 because it has an approximate half life of 5000 years. 
You might be interested in
What forces typically hold ionic solids together?
just olya [345]

Answer: D. Electrostatic forces

Explanation:

7 0
2 years ago
Based on your knowledge of chemical equations, what do you know for sure
Artyom0805 [142]
Pretty sure it shows a chemical reaction
5 0
3 years ago
Why is alchemy not considered a science
Dima020 [189]
That is because Alchemy is not based on real research and facts, but rather on magic and occultism. Sure, many things in it have been used as basics for some chemistry, but most is false and incorrect.
6 0
3 years ago
According to the nebular theory what are asteroids and comets
Nimfa-mama [501]
Asteroids are made up of metals and rocky material , while comets are made up of ice ,dust and rocky material.   
4 0
3 years ago
A hypothetical element has an atomic weight of 48.68 amu. It consists of three isotopes having masses of 47.00 amu, 48.00 amu, a
Morgarella [4.7K]

Answer : The percent abundance of the heaviest isotope is, 78 %

Explanation :

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i

As we are given that,

Average atomic mass = 48.68 amu

Mass of heaviest-weight isotope = 49.00 amu

Let the percentage abundance of heaviest-weight isotope = x %

Fractional abundance of heaviest-weight isotope = \frac{x}{100}

Mass of lightest-weight isotope = 47.00 amu

Percentage abundance of lightest-weight isotope = 10 %

Fractional abundance of lightest-weight isotope = \frac{10}{100}

Mass of middle-weight isotope = 48.00 amu

Percentage abundance of middle-weight isotope = [100 - (x + 10)] %  = (90 - x) %

Fractional abundance of middle-weight isotope = \frac{(90-x)}{100}

Now put all the given values in above formula, we get:

48.68=[(47.0\times \frac{10}{100})+(48.0\times \frac{(90-x)}{100})+(49.0\times \frac{x}{100})]

x=78\%

Therefore, the percent abundance of the heaviest isotope is, 78 %

5 0
3 years ago
Read 2 more answers
Other questions:
  • Why is it colder in polar regions?
    6·2 answers
  • how many moles of hydrogen are evolved when an excess of sodium metal is added to one mole of citric acid?
    7·1 answer
  • Calculate the number of moles in the 2.00-L volume of air in the lungs of the average person. Note that the air is at 37.0°C (bo
    8·1 answer
  • What is the formula for the covalent compounds sulfur pentaoxide and hydrogen monobromide?
    14·1 answer
  • Explain the difference between endothermic and exothermic processes. Provide an example of each.
    9·1 answer
  • In one sentence state why soft drink (coke fanta e.t.c) are called carbonate drink. pls i need the answer now​
    10·1 answer
  • What is two common uses that has technetium??
    11·1 answer
  • Exactly 56 grams of iron is mixed with 156 grams of oxygen. The elements are heated and they react. What best describes which re
    15·1 answer
  • What is the molarity of a solution containing 11.2 g Ca(N03)2 in 175 mL of solution?
    15·1 answer
  • One mole of CO2, is equal to how many molecules
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!