The total number of neutrons in an 
Is ________.
Definitions:
Probability
A measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.
Cross-Sectional Study
A study in which people (or animals) of different ages are compared at a given time.
Longitudinal Study
A research design that involves repeated observations of the same variables (e.g., people) over short or long periods of time.
Gender Relationships
The social and cultural constructs that define the interactions, roles, behaviors, and expectations between genders within a society.
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