Problem: Be sure to answer all parts.A freshly isolated sample of  90Y was found to have an activity of 1.9 x 105 disintegrations per minute at 1: 00 p.m. on December 3, 2006. At 2: 15 p.m. on December 17, 2006, its activity was measured again and found to be 5.0 x 103 disintegrations per minute. Calculate the half-life of  90Y. Enter your answer in scientific notation. 

FREE Expert Solution

95% (63 ratings)
View Complete Written Solution
Problem Details

Be sure to answer all parts.

A freshly isolated sample of  90Y was found to have an activity of 1.9 x 105 disintegrations per minute at 1: 00 p.m. on December 3, 2006. At 2: 15 p.m. on December 17, 2006, its activity was measured again and found to be 5.0 x 103 disintegrations per minute. Calculate the half-life of  90Y. Enter your answer in scientific notation. 

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the First Order Half Life concept. You can view video lessons to learn First Order Half Life. Or if you need more First Order Half Life practice, you can also practice First Order Half Life practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Maxwell's class at UCF.