Electromagnetic Radiation (NB Pgs 7-9 odd) Picture pg 8.
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Transcript of Electromagnetic Radiation (NB Pgs 7-9 odd) Picture pg 8.
![Page 1: Electromagnetic Radiation (NB Pgs 7-9 odd) Picture pg 8.](https://reader036.fdocuments.in/reader036/viewer/2022070410/56649f135503460f94c2800e/html5/thumbnails/1.jpg)
Electromagnetic Radiation
(NB Pgs 7-9 odd)Picture pg 8
![Page 2: Electromagnetic Radiation (NB Pgs 7-9 odd) Picture pg 8.](https://reader036.fdocuments.in/reader036/viewer/2022070410/56649f135503460f94c2800e/html5/thumbnails/2.jpg)
Electromagnetic radiation
• Electromagnetic Radiation is a form of energy. The following are different types of radiation that behave differently.
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What makes electromagnetic radiation?
• Electromagnetic radiation is made when an atom absorbs energy (Electricity- neon signs)
• The absorbed energy causes one or more electrons to change their location within the atom.
• When the electron returns to its original position, an electromagnetic wave is produced.
• Type of atom and amount of energy, determine type of electromagnetic radiation.
• These waves are called "electromagnetic radiation" because they radiate from the electrically charged electrons
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Visible Light• The visible spectrum is the
portion of the electromagnetic radiation that can be detected by the human eye.
• Colors containing only one wavelength are called pure colors
• Colors such as pink, or purple variations such as magenta, are a mix of multiple wavelengths.
Pure colors: Red, Orange, Yellow, Green, Blue, Indigo, Violet
(Roy G Biv)
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Why is neon bright-reddish orange?
** Note:Neon signs can vary in color because of the color of glass used.
•Pure neon Glass emits the following spectra
The orange color we see is a combination of these spectra lines
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Why are there diff colors?
• ElementsElements emit emit specificspecific colors colors because because of their of their electronelectron arrangementarrangement.
• Each type of element has a unique arrangement of electrons.