E. Give evidence to support or dispute: "In nature, the chance of finding one isotope
of an element is the same for all elements." (this objective is completed by
responding to question 2 below)

However, the chance of finding one isotope of an element is not the same for all elements because some elements/isotopes are more in abundance than some other elements/isotopes; for example the most abundant element on earth is nitrogen-14, hence the chances of finding nitrogen-14 in nature is higher the chances of finding any isotope of Xenon.

Also, while isotopes occur naturally, some do not. Hence, the chances of finding a naturally occurring isotopes (no matter how rare like Xenon-126) is higher than the chances of finding artificial radioisotopes like technetium-95 and promethium-146 (whose chances are zero because they cannot be found naturally occurring).

E. Give evidence to support or dispute: "In nature, the chance of finding one isotope of an element is the same for all elements." (this objective is completed by responding to question 2 below)

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E. Give evidence to support or dispute: "In nature, the chance of finding one isotope
of an element is the same for all elements." (this objective is completed by
responding to question 2 below)