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When a liquid is heated, which of the following is most likely to occur?
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8. Thermochemistry
Nature of Energy
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Why do atoms emit light energy when heated?
A
Heating causes atoms to split, releasing light energy in the process.
B
The nucleus of the atom vibrates rapidly, emitting light energy.
C
Electrons absorb energy and move to higher energy levels, then release light as they return to lower energy levels.
D
Atoms lose protons when heated, which produces light energy.
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Understand that atoms consist of a nucleus surrounded by electrons in specific energy levels or orbitals.
When atoms are heated, electrons absorb energy and become 'excited,' meaning they move from a lower energy level to a higher energy level.
This excited state is unstable, so electrons tend to return to their original, lower energy levels.
As electrons return to lower energy levels, they release the excess energy in the form of light (electromagnetic radiation).
The emitted light corresponds to specific wavelengths, which depend on the difference in energy between the higher and lower energy levels.
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