adorkablepanda
adorkablepanda adorkablepanda
  • 02-02-2017
  • Biology
contestada

We start with 400 atoms of Uranium-238. How many remain after 4.5 billion years?____
After 9 billion years? ____
After 13.5 billion years? ____

Respuesta :

scme1702
scme1702 scme1702
  • 07-02-2017
The half life of Uranium-238 is about 4.5 billion years.

Amount after:
4.5 billion years = 200 atoms
9 billion years = 100 atoms
13.5 billion years = 50 atoms
Answer Link

Otras preguntas

Railroad shipping rates blank. A. Were equal for all shippers B. Favored small shippers C. Favored large shippers D. None of the above
evaluate 6÷3×2a for a =2​
Write the rational number whose decimal representation is 6.013
what is factorisation and how do you do it?
(The Old Man and the Sea) 5. Where does Santiago decide to fish? Why?
What are two examples of information displayed in the name manager
Find the surface area of the cone. Use 3.14 to approximate pi. Round your answer to the nearest hundredth.
What was a major effect of the 1918 influenza pandemic
Out of 5400 raffle tickets sold at the carnival, 180 are winners. At the same rate, how many winning raffle tickets can be expected if 8100 raffle tickets are
Plz answer it fast I will give you ten point