element

How do i find the Relative Abundance for Mass between Two Isotopes?
I understand how to find the mass of an element given the abundances but how do I find the relative abundance between two isotopes with the given mass?   … Read more

What is the percent abundance of the isotope with the mass number of 67?
A hypothetical element has an atomic weight of 69.72 amu. The two isotopes of this element have mass numbers of 67 and 70. What is the   … Read more