Question

Which of the following isotopes is used for finding the fossil age more than 4500 years?

• A. ${ } ^ { 14 } \mathrm { C }$
• B. ${ } ^ { 3 } \mathrm { H }$
• C. ${ } ^ { 206 } \mathrm {~Pb}$
• D. ${ } ^ { 238 } \mathrm { U }$

Answer 1

Answer: (D)

${ } ^ { 238 } \mathrm { U }$