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16 Cards in this Set
- Front
- Back
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Electromagnetic Radiation |
A type of energy that travels through space at a constant speed of 3.0x10^8 m/s |
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Wave Length |
The distance between adjacent wave crest |
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Frequency (v) |
The number of crests that pass through a point |
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Gamma Rays |
Highest energy photons. Damage bilogical moleules |
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Ultra Violet Light |
High energy photons. Exposure from the sun. Can damage biological DNA |
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Visible Light |
λ = 400,750 . |
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ROYGBIV |
Red, Orange, Yellow, Green, Blue, Idigo, Violet |
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Infrared |
lower energy than red light. Emitted by warm objects. |
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Elecromagnetic spectrum |
The entire range of electromagnetic radiation |
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Emission Spectrum |
separation of wavelengths of light after it hits an atom |
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Valence Electron |
electrons in the outermost principal shell |
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Core Electrons |
Electrons not in the outermost principal shell |
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Periodic Trends |
Atomic size, Ionization, Metallic Character. |
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Atomic size |
The distance between the outermost electrons and its nucleus. increases down through periods decreases right through groups |
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Ionization Energy |
The energy required to remove an electron from the atom in a gaseous state. Decreases through periods, increases through groups |
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Metallic Character |
Tendency for atoms to lose their elecrons. ncreases down through periods decreases right through groups |
