Let's say you were trying to collect the smallest sample in equal masses of every atomic element. How much would each jar weigh?
Religion? What are you talking about?!Let's say mass as opposed to weight... As every element and religion has that.
Although element masses are given in multiples of AMUs (atomic mass units) due to variations in binding energy elements are rarely bang on an integer multiple of AMUs. Since we cannot measure nor calculate the masses to arbitrary precision we have only (pretty good) approximations. As such your question cannot be answered in a precise way. Besides, there's no reason to think all element masses are rational multiples of one another. If one element had mass say $$\sqrt{2}$$ and another mass 1 then there's no integers a and b such that $$a\sqrt{2} = b$$.What is the smallest mass we could isolate to create an equal statistical collection of mass of any and every tangible "pure" substance?
It doesn't much make a difference if it naturally occurs here as an isotope... It is still whole and complete. I'm just looking for the least common factor between two masses... Or maybe the right amount for them to divide equally.
Yes, to invoke some sort of rational thought into highly intelligent people who can barely understand the word "tangible".
Let's say we put the universe on a scale and weighed the mass of every element? Would we find the same number for hydrogen as iron?
Does the mass increase as we mass the next sequential element, decrease or remain constant?
Huh? Is your question really: if all parts are equal are all parts equal?If the universe is in equal parts wouldn't all parts be equal?
rpenner already showed you that your question cannot be answered.
The question could become answerable, if you simplify the question to mean that we take the mass of an atom to equal the number of protons and neutrons in the most common isotope (or something like that).