Radioactive decay function

MATHEMATICS

In what field the function appears :

• This function represents the numbers N of atoms depending on the time (t) in second.

• The field of the function is : [0 ; -∞[ and the function is a decreasing function.

N(t)=2-t/1620

• The variation table of this function is :
• But 0 is not included.

what it is used for :

This function represents the Radioactive decay.

When you look at the function it seems to be at zero, but when you look at it closer you can see that it's not. In fact you can see that it go down indefinitly. You can explain that by the fact that you cannot get zero when you divide a number by an other number than zero.

+ info

what it is used for :

• This function represents the Radioactive decay, it's a process in which unstable atomic nucleos loses energy. This decomposition is due to the transformation of the nuclide.

• The bigger nuclide called "parents nuclide" become smaller " daughter nuclide".

• This loss of energy leads to a reduction in weight