The half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is 4.463×10^11 years longer. What is the half-life of uranium-238? The answer should be in decimal form

Answer 1

To find the half-life of uranium-238, we add the additional duration of 4.463×10^11 years to the half-life of uranium-235.

Half-life of uranium-238 = Half-life of uranium-235 + Additional duration
Half-life of uranium-238 = 700,000,000 years + 4.463×10^11 years

Using scientific notation, we can add these two numbers:

Half-life of uranium-238 = 700,000,000 years + 446,300,000,000 years
= 446,300,700,000 years

Therefore, the half-life of uranium-238 is 446,300,700,000 years. In decimal form, it is approximately 4.463×10^11 years.