The element X has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes are given in the table below. The average atomic mass of the element is amu. 
Definitions:
Points-Of-Difference
A type of value proposition that focuses on the product or service relative to the competition and how the offering is different from others on the market.
Taste Fairs
A public event where various food and drink suppliers offer samples of their products for tasting.
Expensive Chinese Restaurant
A high-end dining establishment specializing in Chinese cuisine, typically characterized by premium prices and quality.
Ambiance
The character and atmosphere of a place, which contributes to its overall impression and experience.
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