GrazynaGlos GrazynaGlos

09-10-2014
Chemistry

Answered

If a radioisotope has a half life of 10 years, how much of the original material would remain after 40 years?

Answer :

Bekamop99 Bekamop99

09-10-2014

1/8 would remain...
(1/2 is 10 years
1/4 is 20 years
1/8 is 40 years)

Hope this helps! :)

Answer Link

icedraptor88 icedraptor88

10-10-2014

Instead of dividing the material by half each time, start by dividing 40 years by the half life of ten. This gives you 4. Subtract 1 So you the answer is 1/2 to the 3rd power

Answer Link

Other Questions

Type the equation that shows the pattern among this set of ordered pairs 0 4 1 0 2 4 3 8 Use slopeintercept form y mx b

what was trade over land like

Did Alexander the Great march on Athens And sparta

How many subsets does the set 1 2 3 have

Which document established a process for new territories to become states within the United States A Northwest Ordinance B Declaration of Independence C Bill of

art is often controversial because

Which statement best describes the message of the Monroe Doctrine A The United States was the most militarily advanced country on earth B The United States woul

3x7y6 2x7y4 Solve by elimination

ABCD is a rectangle with AC20 and AB2BC What is the area of rectangle ABCD

Whats 425 rounded to the nearest tenth