The Atomic Mass of an Element

question 8

Multiple Choice

The atomic mass of an element

• A)is determined by the number of protons and neutrons it contains.
• B)equals the number of protons plus the number of electrons.
• C)equals the number of neutrons.
• D)changes after each reaction.
• E)depends on the number of electrons in the outermost shell.

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Definitions:

Development Change

The process of growth or decline in physical, cognitive, social, and emotional capacities over time.

Content Validity

The extent to which a test measures all aspects of the concept or content it's intended to cover.

Establishing Evidence

The process of gathering and presenting data or facts to support or prove a point, hypothesis, or legal case.

Construct Validity

The extent to which a test or instrument accurately measures the theoretical construct or concept it is intended to assess.