Uranium-238 has a half-life of 4.5 billion years. given that scientists estimate earth's age to be 4.6 billion years, what is the most likely percentage of parent to daughter isotopes of this element currently existing on earth? a. 10 percent b. 25 percent c. 50 percent d. 75 percent

The correct answer is option C.

Explanation:

Half life of the uranium-238=

Decay constant =

Let the initial amount of U-238 be x

And the present amount of U-238 be x'.

= Initial amount

A = Amount left after time t

Percentage of left amount:

Hence,the correct answer is option C.

you gotta add the following molecules so we can give u an answer

explanation: