Given That the Only Naturally Occurring Isotope of Sodium Is

question 58

Multiple Choice

Given that the only naturally occurring isotope of sodium is 23Na,what is its isotopic mass? (Hint: Refer to the Periodic Table. )

• A)11.00 amu
• B)11.99 amu
• C)12.00 amu
• D)22.99 amu
• E)34.99 amu

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Definitions:

Perfect Fit

A situation where a model, equation, or line precisely describes or predicts the observed data without any errors.

Chi-square Test

A statistical test used to determine if there is a significant difference between observed and expected frequencies in one or more categories.

Nominal Variables

Variables that represent categories with no inherent order or ranking among them.

Chi-square Test of Independence

A statistical test used to determine if there is a significant association between two categorical variables.