Radiation and Thermal Energy Our Model of the Atom Evolves.
-
Upload
thomasine-copeland -
Category
Documents
-
view
221 -
download
0
Transcript of Radiation and Thermal Energy Our Model of the Atom Evolves.
Incandescent light bulb
• Watch carefully as the power delivered to the light bulb is increased.
• Write down your observations.
Incandescent light bulb
• Now view the light bulb through a spectrometer as the power delivered to the bulb is increased.
• Write down your observations
Compact fluorescent light bulb
• Watch carefully as the power delivered to the light bulb is increased.
• Write down your observations.
Compact fluorescent light bulb
• Now view the light bulb through a spectrometer.
• Write down your observations
• An input of energy is required to make the atoms of an atomic gas emit radiation.
• The radiation emitted by each element is unique.
• A change in temperature results in a change in structure.
• A change in structure results in the emission of light.
• In a compound a change in structure can be explained by a rearrangement of the atoms.
• How about in atomic gases?