Nuclear Half-life Q&A Questions 9 c) & d)
0.0(0)
Studied by 0 people0.0(0)
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/3
There's no tags or description
Looks like no tags are added yet.
Study Analytics
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
4 Terms
1
New cards
The daughter product in this decay is
lead-207. What percentage of the total
possible amount of lead-207 has been
produced after 1420 million years?
Uranium 235 has a half-life of 710 million years. 1420 million years is 2 half-lives. There’d be about 75 percent of lead 207 produced. Uranium 235 = 25%, Lead 207 = 75% adding up to 100%
2
New cards
What percentage of uranium-235
remains after three half-lives?
After three half-lives, 12.5% of uranium-235 remains. 100% x 0.5 × 0.5 × 0.5 = 12.5%
3
New cards
Blank
Blank
4
New cards
Blank
Blank
Note 
Flashcards (108)