A sample of rock from the moon contains equal number of atoms of U and Pb (t ½ for…
Chemistry · JEE Advanced · NTA Exams — Chemical Kinetics
A sample of rock from the moon contains equal number of atoms of U and Pb (t½ for uranium = 4.5×109 years). The age of rock would be
- 4.5 × 109 years
- 90 × 109 years
- 13.5 × 109 years
- 2.25 × 109 years
Answer
(A) 4.5 × 10 9 years
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