Re: We are, a mass extinction event.



You know the results of your calculations are correct, when you can
hypothetically, weigh a sample, of a pure element, and when you apply
avagrado's number, you do not end up with partial or half atoms,
because those don't exist.
So your result, for the number of atoms in a sample, is a whole number.
And the result is the same for all elements.

.