An Element,X,has the Following Isotopic Composition: X-200,90%; X-199,8

question 19

Multiple Choice

An element,X,has the following isotopic composition: X-200,90%; X-199,8.0%; and X-202,2.0%.Its average atomic mass is closest to

• A)200 amu.
• B)203 amu.
• C)199 amu.
• D)202 amu.
• E)201 amu.

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Definitions:

Ego

In psychoanalytic theory, the relatively rational part of the mind that balances the competing claims of the id, the superego, and reality.

Id

In psychoanalytic theory, the repository of the drives, the emotions, and the primitive, unconscious part of the mind that wants everything now.

Psychic Determinism

The assumption that everything psychological has a cause that is, in principle, identifiable.

Psychoanalytic Theory

A psychological theory and therapeutic method developed by Sigmund Freud that emphasizes unconscious motivations and conflicts as the drivers of human behavior.