An Excited Atom Decays to Its Ground State and Emits

question 32

Multiple Choice

An excited atom decays to its ground state and emits a photon of green light.If instead the atom decays to an intermediate state,then the light emitted could be

• A)red.
• B)violet.
• C)blue.
• D)any of these
• E)none of these

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Definitions:

Preoperational Thought

A stage in Piaget's theory of cognitive development where children from about 2 to 7 years of age are able to use symbols and language but do not yet understand concrete logic.

Conservation

The careful preservation and protection of something, especially aimed at preventing the depletion of natural resources.

Private Speech

The internal dialogue that occurs when people talk to themselves (either silently or out loud).

Vygotsky

A psychologist known for his theory of social development and concepts such as the Zone of Proximal Development and scaffolding in learning.