An Element That Has the Same Ground State Valence-Shell Electron

question 27

Multiple Choice

An element that has the same ground state valence-shell electron configuration as sodium is

• A)lithium.
• B)barium.
• C)boron.
• D)lead.
• E)xenon.

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Definitions:

False-Positive Diagnosis

An erroneous identification where a test incorrectly indicates the presence of a condition that is actually absent.

Diagnostic Procedures

Medical tests and evaluations performed to identify the presence of a disease or determine its severity in a patient.

Specificity

The ability of a test to correctly identify those without the disease (true negative rate).

Negative Predictive Value

is the proportion of negative test results that are truly negative, indicating how well a test identifies individuals who do not have a disease.