Chemistry Isotopes Solution: Below is a representation of 50 atoms of a fictiti...

Solution: Below is a representation of 50 atoms of a fictitious element called westmontium (Wt). The red spheres represent Wt-296, the blue spheres Wt-297, and the green spheres Wt-298.Calculate the percent natural abundance of Wt-298 isotope.

Problem

Below is a representation of 50 atoms of a fictitious element called westmontium (Wt). The red spheres represent Wt-296, the blue spheres Wt-297, and the green spheres Wt-298.

Calculate the percent natural abundance of Wt-298 isotope.

The figure shows 50 spheres. There are 12 green spheres, 2 blue spheres, and 36 red spheres.

Solution

An isotope is a variant of a particular chemical element that has the same number of protons but has different number of neutrons. In other words, isotopes have identical atomic numbers but different mass numbers.


Most of the elements are mixtures of their isotopes and their average atomic masses are in fact the weighted averages of the atomic masses of individual isotopes.


Natural abundance is the percent abundance of an isotope as found naturally on the planet.


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