If the amount of radioactive element is 1/8 of the amount originally present, how many half-lives have gone by? Please show your work
What will be an ideal response?
P=Parent, D = Daughter, HL = Half-lives
P D HL
1 0 0
1/2 1/2 1
1/4 3/4 2
1/8 7/8 3
The answer is 3 half-lives have gone by.
Environmental & Atmospheric Sciences
You might also like to view...
What did Dr. Albert Bartlett mean when he said, "the greatest shortcoming of the human race is our
inability to understand the exponential function"? What will be an ideal response?
Environmental & Atmospheric Sciences
On average, the atmosphere absorbs roughly this percentage of the solar radiation that reaches the top of the atmosphere:
A) 5 percent. B) 14 percent. C) 25 percent. D) 50 percent.
Environmental & Atmospheric Sciences
Large woody vines that are rooted in the soil and found in the worlds tropical forests are called
A) understory. B) lianas. C) epiphytes. D) bryophytes.
Environmental & Atmospheric Sciences
Explain image-to-map transformation.
What will be an ideal response?
Environmental & Atmospheric Sciences