Activity Number 304

	Overview and Learning Objectives
	Classroom Practice
	Central Concepts
	Benchmarks and Standards
	Activity Credits

Spectroscopy (SAM)

Interactive, scaffolded model

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	Overview and Learning Objectives Students explore the relationship between an atoms energy levels and its photon emissions. They explore the different ways an atom might be excited. Finally, students compare patterns of spectral emissions in order to identify the atomic constituents of matter. Students will be able to: • Determine that the frequency of a photon is determined by the difference of energy levels. • Add energy and excite atoms. • Analyze photon emissions and identify atoms that emit them. • Determine that atoms can absorb photons of specific frequencies. • Explore emissions spectrum, and identify atoms by their spectra. return to top



	Classroom Practice http://sam.concord.org/publications/teacher-guides/Spectroscopy.ver1.pdf return to top



	Central Concepts Key Concept: An atom's spectrum is like its fingerprint -- unique to that particular kind of atom. Since every type of atom emits and absorbs only photons of particular frequencies, one can compare patterns of spectral emissions in order to identify the atomic constituents of matter. Additional Related Concepts Physics/Chemistry Photon Spectrum return to top



	Benchmarks and Standards AAAS THE PHYSICAL SETTING: FORCES OF NATURE - Electromagnetic forces acting within and between atoms are vastly stronger than the gravitational forces acting between the atoms (Full Text of Standard) return to top



	Activity Credits Created by CC Project: SAM using Molecular Workbench return to top

These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701 and EIA-0219345

Any opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect
the views of the National Science Foundation.

Spectroscopy (SAM)

Overview and Learning Objectives

Classroom Practice

Central Concepts

Additional Related Concepts

Benchmarks and Standards

Activity Credits