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:
Job Designs
The process of organizing tasks, duties, and responsibilities into a productive unit of work to enhance efficiency and employee satisfaction.
Core Characteristics Model
A framework identifying key job dimensions that influence motivation, satisfaction, and performance in the workplace.
High Turnover
A situation where an organization experiences a rapid rate of employee departure and replacement.
Job Enrichment
A management strategy focused on modifying and enhancing jobs to make them more satisfying and motivating for employees.
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