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The half life of Uranium-238 is 4.5 billion years and the age of earth is 4.5 X 109 years. What fraction of Uranium-238 that was present when Earth was formed still remains?

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mehreyaranjbar
The correct answer is 1/2

The half-lifes of Ur 238 are 4.5 bn years such as the age of the formation of the planet. The earth's formation is 4.5 billion years x 109 years.

  • The fraction of Ur 238 that was found n the earth still remains to be 1/2 that is 50%.

Learn more about the 238 is 4.5 billion years and the age of the earth.

brainly.com/question/13656440.

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