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:
Mental Health Assessment
A comprehensive evaluation, typically conducted by a qualified professional, to determine an individual's mental, emotional, and psychological well-being.
Advanced Practice Nurse
A registered nurse (RN) who has acquired expert knowledge base, complex decision-making skills, and clinical competencies for expanded practice.
Prescribe Medication
The act by a licensed medical professional to legally authorize the use of pharmaceutical drugs to a patient.
Sociocultural Dissonance
Sociocultural dissonance refers to the conflict or inconsistency between an individual's cultural beliefs, values, or practices and those of a different or dominant surrounding culture, often leading to psychological stress or identity confusion.
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