Unit 2-Notes 2-At structure-1

Unit 2-Notes 2-At structure-1 - by the arrow, we find that...

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Keywords Atomic radius Ionic radius Ionization energy Acidic oxides Basic oxides Amphoteric oxides Thompson’s model Proton Electron Neutron Velocity of light Frequency Wavelength Wave number Emission spectrum Hydrogen spectrum Visible spectrum Balmer series Rydberg’ constant
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Atomic Radii
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Atomic radii of the elements
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We can see that ………………………………………………………………………………………… ……. .
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Compare the……………………………………………………………………… …………………
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oxides
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Thompson’s model of the atom
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10^-8/10^-13 10^-8 X 10^13 = 10^5
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What is velocity? The distance travelled in one second What is frequency? The number of waves or cycles that occur when the light travels for one second. In the figure above if we assume that light travels the distances shown
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Unformatted text preview: by the arrow, we find that the upper wave has 4 cycles while the lower one has 8 cycles Therefore we find that lower the wave length, higher the frequency (see the lower wave) frequency and wavelength are inversely Important equations to remember E = h but = c/ E = h c/ What is ( new bar/wave # ) = 1/ It is the number of waves in 1 cm, no unit HIGH LOW 1 pm = 10^-12m 1nm= 10^-9 m 1 (mu)m=10^-6 m Frequency and wavelength are inversely related Wave Length of Radiation Gamma rays, X-rays, UV, Infrared, Microwaves, FM short waves, AM Long radio Waves Energy of Radiation AM Long radio waves, FM short waves, Microwaves, Infrared, UV, X-Ray, Gamma Rays What is the visible series....
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Unit 2-Notes 2-At structure-1 - by the arrow, we find that...

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