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Atomic Emission Spectra of electrons
Transcript of Atomic Emission Spectra of electrons
Electrons jump energy levels when they reach an excited state
As the electrons drop back down to their original energy level (or ground state),
they release energy in the form of light
We see different colors of light because of the different
wavelengths of light emitted
Each element has a unique color it emits
The unique color is derived from the different wavelengths of light emitted
is a form of energy that exhibits wavelike behavior as it travels through space
The light being emitted by the colored fire is directly related to the behavior of
The accumulation of all forms of light is called the
... so basically elements have a unique color they emit which can consist of many wavelengths of light
When the light emitted by an element is passed through a prism or a spectrometer, the light is broken up spatially according to it's wavelength.
The wavelengths emitted by an element is known as it's emission spectrum
The wavelengths absorbed by an element is known as it's absorption spectrum
emits the highest wavelength of visible light
... but it has the lowest frequency and energy
emits the lowest wavelength of visible light
... but it has the highest frequency and energy
visible light spectrum
(what we can see) consists of wavelengths from 400 nm to 700 nm
(1 nm = 1 x 10 m)
Relationships between wavelength, frequency, and energy
Relating wavelength and frequency
Relating energy and frequency
The produce of wavelength ( ) and frequency (f) of a wave is equal tjo the speed of light (c)
The speed of light is equal to 3.00 x 10 m/s
Wavelength and frequency are inversely proportional to one another; meaning as one increases the other decreases!
The amount of radiant energy (E) emitted or absorbed by a body is proportional to thfrequency of radiation (f)
This relationship was discovered by Max Planck.
Planck's constant (h) is equal to 6.626 x 10 J/s
Energy and frequency are proportional to one another; meaning as one increases the other increases
c = f
E = h f