Question

The half life of uranium 235 is 700,000,000 years the half life of uranium 238 is 4.463x10^11 years longer what is the half life of uranium 238 answer should be in decimal form

Answer 1

To find the half-life of uranium-238, we can add the half-life of uranium-235 to the additional duration given.

The half-life of uranium-235 is 700,000,000 years, or in decimal form:

\[
700,000,000 \text{ years} = 7.0 \times 10^8 \text{ years}
\]

The half-life of uranium-238 is given as:

\[
4.463 \times 10^{11} \text{ years}
\]

Now, we can convert this to decimal form:

\[
4.463 \times 10^{11} \text{ years} = 446,300,000,000 \text{ years}
\]

Thus, the half-life of uranium-238 is:

\[
446,300,000,000 \text{ years} = 4.463 \times 10^{11} \text{ years}
\]

In decimal form, it is:

\[
446,300,000,000.0 \text{ years}
\]

So, the answer for the half-life of uranium-238 in decimal form is:

**446,300,000,000.0 years**