Atomic half life problem

[ConradM]

Hi
I'm trying to solve an atomic half life problem.
How can I get "n" out of (1/2)^n=1/10 (the "n" is an exponent)
My mom can't remember how to do this.
Conrad

 

[Denis]

Hi
I'm trying to solve an atomic half life problem.
How can I get "n" out of (1/2)^n=1/10 (the "n" is an exponent)
My mom can't remember how to do this.
Conrad

If x^p = y, then p = log(y) / log(x)