Boron Naturally Occurs in Two Isotopic Forms

question 45

Multiple Choice

Boron naturally occurs in two isotopic forms. The more common isotope is ¹¹B (atomic mass 11.01 amu) , which is 80.00% abundant. The average atomic mass of boron is 10.81. What is the mass of the other isotope?

• A) 10.91 amu.
• B) 10.01 amu.
• C) 10.81 amu.
• D) 11.00 amu.
• E) 11.01 amu.

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Definitions:

Consumption Bundle

A mix of various goods and services selected by consumers based on their preferences and budget limitations.

Slope

The rate at which one variable changes in relation to another, representing the steepness of a line on a graph.

Indifference Curves

Graphical representations of different bundles of goods between which a consumer is indifferent, showing preferences.

Consumption Bundle

A set of goods or services that an individual considers purchasing, given their income and the prices of those goods/services.