Halflives for different Radioisotopes

1
(No Transcript)
2
Half-lives for different Radio-isotopes
Rad. Parent Half-life Stable Daughter
238U 4.47x109 years 206Pb
235U 7.04x108 years 207Pb
232Th 1.40x1010 years 208Pb
87Rb 4.88x1010 years 87Sr
40K 1.28x109 years 40Ar, 40Ca
14C 5.73x103 years 14N
3
(No Transcript)
4
(No Transcript)