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If 32 ÷ 8 = 4, then the material will go through 4 half-lives. What is the decay constant for a radioactive isotope with a half-life of 22.5 hours?
At first glance, it may seem that not enough information was provided to solve this problem.
We received summer homework and were given problems and the equation, but i do not understand how to use it.
This is the first question: "Feldspars commonly incorporate Potassium (K), and a portion of this K is the isotope 40 K. I am getting ready to take a geology class in my high school.
However, if the half-life value is given for time (t) then the value of (because only half of the original material remains).
I am getting ready to take a geology class in my high school.
Let's propose you want to find out the age of a volcanic dike containing feldspar crystals.
You analyze the feldspars, and find that the feldspar currently contains 250 atoms of 40Ar for each 750 atoms of 40K. " We were given the equation : t = -T1/2 / 1n2 1n ( N / N0) What is the parent atom in this question? I did find a website that shows the half lives of elements, but what element do i need the half life to?
To answer this question, there is no need to solve for the radioactive decay equation.
A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay.
For example, if the half-life of a 50.0 gram sample is 3 years, then in 3 years only 25 grams would remain.
This is the first question: "Feldspars commonly incorporate Potassium (K), and a portion of this K is the isotope 40 K.
They commonly incorporate no Argon (Ar) to speak of when they initially crystallize.
What you have here is a radioactive decay of Potassium; in this case, decay of the isotope (a form of potassium) called K-40.