Which Ion Is Not Found in Sea Water in a Concentration

question 36

Multiple Choice

Which ion is not found in sea water in a concentration high enough to be an industrial source of the metal?

• A) Ca²⁺
• B) Mg²⁺
• C) Na⁺
• D) K⁺
• E) Ag⁺

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Definitions:

Frustration-Regression Principle

A concept suggesting that when an individual encounters obstacles or frustrations, they may revert to earlier behaviors as a coping mechanism.

Maslow's Hierarchy

A theory in psychology proposed by Abraham Maslow, which illustrates a five-tier model of human needs, depicted as hierarchical levels within a pyramid.

Acceptance

The action of consenting to receive or undertaking something offered.

Two-Factor Theory

A psychological theory suggesting that human behavior is influenced by two separate factors: motivation (intrinsic) factors, which drive satisfaction, and hygiene (extrinsic) factors, which can prevent dissatisfaction.