Question

The half-life of uranium–238 is 4.5 × 10! years. The half-life of uranium-234 is 2.5 × 10! years.
How many times greater is the half-life of uranium-238 than that of uranium-234?

Answer 1

Answer:

4.5 times

Step-by-step explanation:

Half life of U-238= 4.5 × 10!

Half life of U-234= 2.5 × 10!

So,

let life of U-238 is x times the life of U-234.

(4.5×10!)/(2.5×10!) = x

x = 4.5/2.5

x = 9/5

x = 4.5