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:

Sales Volume

The quantity of units sold within a specified period, crucial for analyzing a company's performance and planning production.

Variable Cost

Costs that vary directly with the level of production or sales volume, such as materials and labor directly involved in creating a product.

Advertising Spending

The amount of money a company uses for its advertising efforts to promote its products or services.

Contribution Margin

Contribution Margin is the difference between sales revenue and variable costs of production, indicating how much revenue contributes to fixed costs and profit.