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PLS HELP HURRYYYYY!!!!!!! The half-life of a radioactive kind of protactinium is 27 days. How much will be left after 54 days, if you start with 488 grams of it?
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PLS HELP HURRYYYYY!!!!!!!

The half-life of a radioactive kind of protactinium is 27 days. How much will be left after 54
days, if you start with 488 grams of it?

User Harjot
by
6.0k points

1 Answer

9 votes

Answer:

122 gm

Step-by-step explanation:

54 days is 2 half lives : ( 27 * 2 = 54)

1/2 * 1/2 = 1/4 will be left

1/4 * 488 = 122 gm

User Sarvan
by
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