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radioactivity
radioactivity, uses & dangers
half life
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Cards (3)
label
A)
unstable nucleus
B)
decay
C)
rate
D)
activity
E)
decreases
F)
time
G)
number of nuclei
H)
sample
I)
radioactie isotopes
J)
decrease
K)
half
11
label
A)
amount
B)
25
C)
quarter
D)
same
E)
constant
5
label
A)
known proportion
B)
activity
C)
formed
D)
measure
E)
proportion
F)
uranium
G)
activity
H)
now
I)
compare
J)
half
K)
lives
L)
calculate
12