What is the difference between the mass of an isotope and the atomic mass of an element?

Answer 1

Naomi Aronson

The quoted mass atomic mass is the weighted average of the individual isotopes........

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Answer 2

Jose Ayala

The mass of an isotope refers to the total mass of a specific isotope of an element, including the combined mass of its protons, neutrons, and electrons. The atomic mass of an element, on the other hand, is the weighted average mass of all the naturally occurring isotopes of that element, taking into account their relative abundances. Therefore, while the mass of an isotope pertains to a specific variation of an element, the atomic mass encompasses the average mass of all isotopes of that element found in nature.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.