The radioactive element americium-241 has a half-life of 432 years. how many years will it take a 10 gram mass of americium-241 to decay to 2.7 grams.

This problem can be solved using the Radioactive Half Life Formula:

  (1)

Where:

is the final amount of the material

is the initial amount of the material

is the time elapsed  (the quantity we are asked to find)

is the half life of americium-241

Knowing this, let's find from (1):

Applying natural logarithm in both sides:

Finally:

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.