-) hal-bfe q 242 days. sich valse is closet to the b.4 the alter 2 ym. (1730 dug )? Gaddinium-153. has. a half- f e Gd-133 1.ft in a poranstem t'l2= 242 d. 12.5%
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See image below. Can you please show me how to solve this to get 12.5%?
Gd-153 has half life of 242 days
question is asked about , percentage of Gd-153 remaining after 730 days
1) first we will calculate number of possible half lifes in 730 days
number of half lifes = total days / half life days
= 730 / 242
= 3.02
= 3.00 half lifes
2) now we will calculate % of Gd-153 remaining after completion of 3 half lifes
suppose we have initial amount 100%
100% 50% 25 % 12.5 %
Step by step
Solved in 2 steps
