The half-life of a substance is 100 years. What the rate of decay per annum, expressed as a percentage correct to 1 decimal place?
I have made an equation where
#x# is the original amount of substance
#r# is the rate of decay per anunum
#x/2# = #x (1 - r)^100#
Can someone help me solve it?
I have made an equation where
Can someone help me solve it?
1 Answer
Feb 28, 2018
The rate of decay p.a is
Explanation:
The equation for the radioactive decay is
The initial mass is
The half life is
The radioactive constant is
Therefore,
The time is
Therefore,
The rate of decay p.a is