Half Lives Flashcards
0
Q
The older a sample becomes, the less radiation it will emit.
True or false?
A
True
1
Q
What is a half life?
A
The time it takes for the radioactive nuclei to half.
The time it takes for half the radioactive nuclei to decay
For example. If you started with 8 nuclei and there was only four after an hour, the half life would be 60 minutes long
2
Q
For some isotopes it takes a few microseconds for all the unstable nuclei to decay
True or false?
A
True
3
Q
For some isotopes it takes millions of years to decay
True or false?
A
True
4
Q
If the activity falls quickly, will the half life be short or long?
A
Short
