Question

The relative abundance of isotope X-42 is 10%,
isotope X-43 is 50%, and the relative
abundance of isotope X-44 is unknown. What is
the abundance of isotope X-44?

Answer 1

Element X has 3 isotopes: X-42 with a relative abundance of 10%, X-43 with a relative abundance of 50% and X-44 with a relative abundance of 40%.

Let's consider element X, which has 3 isotopes: X-42 with a relative abundance of 10%, X-43 with a relative abundance of 50% and X-44 with an unknown relative abundance.

Assuming there are only 3 isotopes of element X, we know that the sum of the relative abundances of them is equal to 100%. The relative abundance of X-44 is:

$ab(X-42) + ab(X-43) + ab(X-44) = 100\%\\ab(X-44) = 100\% - ab(X-42) - ab(X-43)\\ab(X-44) = 100\% - 10\% - 50\% = 40\%$

Element X has 3 isotopes: X-42 with a relative abundance of 10%, X-43 with a relative abundance of 50% and X-44 with a relative abundance of 40%.

You can learn more about isotopes here: https://brainly.com/question/21536220