11-2: Half Life and Radioactivity Flashcards
1
Q
What is half life?
A
The time to takes for half of the particles of something to decay
2
Q
t
A
Time elapsed
3
Q
n
A
Number of half lives
4
Q
t 1/2
A
half life
5
Q
m o
A
Original mass
6
Q
m f
A
Final mass
7
Q
Number of half lives
A
t divided by t 1/2
8
Q
Fraction Remaining
A
(1/2)^n
9
Q
Final Mass Equation
A
m o times (1/2)^n
10
Q
Original Mass Equation
A
m f (2)^n
