An Atom with 45 Protons Has a Mass Number of 99.How

question 30

Multiple Choice

An atom with 45 protons has a mass number of 99.How many neutrons does the atom contain?

• A) 144
• B) 45
• C) 99
• D) 54
• E) None of these

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Definitions:

External Costs

Costs incurred by third parties who are not directly involved in a transaction or economic activity, such as environmental pollution affecting the community.

Marginal Cost Curve

A graphical representation showing how the cost of producing one more unit of a good changes as production volume increases.

Marginal Social Cost

The total cost to society of producing one additional unit of a good or service, including both direct costs and any adverse impacts on third parties.

External Costs

Costs that affect parties who do not directly participate in an economic transaction, often not reflected in market prices (e.g., pollution).