In Identical Mineral Structures,cations of Similar Sizes Often Substitute for Each

question 53

Multiple Choice

In identical mineral structures,cations of similar sizes often substitute for each other.Based on size similarities which of the following pairs would you expect to substitute with most ease?

• A)Na⁺ and K⁺
• B)Ca⁺ and Mg⁺²
• C)Si⁺⁴ and K⁺
• D)Mg⁺² and Fe⁺²

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Definitions:

Regression Models

Statistical methods used to estimate the relationship between a dependent variable and one or more independent variables.

Independent Variable

A variable in statistical modeling that is manipulated or categorized to observe its effect on a dependent variable.

Stepwise Regression

An approach to constructing regression models where the selection of predictor variables is performed automatically.

Dependent Variable

A variable in an experiment or model that is expected to change in response to manipulations of independent variables.