Elements 21 Through 30 Are Known as __________

question 11

Multiple Choice

Elements 21 through 30 are known as __________

• A) alkaline earths.
• B) chalcogens.
• C) halides.
• D) transition metals.
• E) rare earths.

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Definitions:

Mutually Beneficial Exchange

An economic interaction where all parties involved gain or perceive a gain from the transaction.

Comparative Advantage

The ability of an individual or country to produce a good or service at a lower opportunity cost than others, leading to more efficient international trade.

Opportunity Cost

The cost of foregoing the next best alternative when making a decision.