Mendeleev Is Given the Most Credit for the Concept of a Periodic

question 3

Multiple Choice

Mendeleev is given the most credit for the concept of a periodic table of the elements because:

• A)He had the longest history of research in elemental properties.
• B)He emphasized its usefulness in predicting the existence and properties of unknown elements.
• C)His representation of the table was the most understandable.
• D)His periodic table was arranged in octaves.
• E)He grouped elements into triads of similar properties.

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Definitions:

Personality Disorder

Mental disorders characterized by enduring maladaptive patterns of behavior, cognition, and inner experience, exhibited across many contexts and deviating from those accepted by the individual's culture.

Cluster A

A category in the DSM used to classify personality disorders characterized by odd or eccentric behaviors, including paranoid, schizoid, and schizotypal personality disorders.

Antisocial Personality Disorder

A mental condition characterized by a long-term pattern of disregard for, or violation of, the rights of others.

Cluster B

A category within the Diagnostic and Statistical Manual of Mental Disorders that includes personality disorders characterized by dramatic, overly emotional, or unpredictable thinking or behavior.