What 2- ion has the following ground state electron configuration? 
Definitions:
System Reliability
The probability that an entire system or network will function as intended for a specific period under given conditions.
Reliabilities
Measures of the probability that a system or component will perform its required function for a specified period under stated conditions.
Objective
A specific, measurable goal that is designed to be achieved within a specific timeframe to further an individual's or organization's agenda.
Maintenance
The process of preserving or restoring equipment, machines, or systems to ensure they continue to function correctly and efficiently.
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