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MM 2011 AH Advanced Higher Chemistry Unit 1 - Electronic structure and the periodic table (20 hours) Unit 2 - Principles of chemical reactions (40 hours) Unit 3 - Organic chemistry (40 hours) Chemical investigation (20 hours)
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MM 2011 AH Electromagnetic spectrum & associated calculations Electronic configuration & the Periodic Table Electronic structure Spectroscopy Chemical bonding Covalent bonding Resonance structures Shapes of molecules & polyatomic ions Ionic lattices, superconductors and semiconductors Some chemistry of the Periodic Table The second & third short periods: oxides, chlorides & hydrides Electronic configuration & oxidation states of the transition metals Transition metal complexes Electronic structure and the Periodic Table
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MM 2011 AH Electromagnetic radiation James Maxwell’s theory all radiation wave-like electric and magnetic fields in space Electromagnetic radiation constant velocity in a vacuum waves varying in length 10 -14 m - 10 4 m 3 x 10 8 ms -1
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MM 2011 AH Waves Waves can be described by their wavelength, frequency and velocity. Wavelength, (m or nm; 1 nm = 10 -9 m), the distance between two identical points on adjacent waves. Frequency, f (or) (s -1 or Hz), the number of waves per second Velocity, c (ms -1 ), the distance a wave travels per second c = x f ( Wavenumber, 1/ (m -1 or cm -1 ), the number of waves in one metre or one centimetre.
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MM 2011 AH Waves continued 1 s f (or ) = 3 Hz Velocity, c (ms -1 ) = x f (or = c f f (or = c f (or ) = 6 Hz
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MM 2011 AH Waves summary QuantitySymbolUnitsDescription Frequency Hz Wavelength Velocity Wavenumber c f (or m ms -1 cm -1 or m -1 Distance between adjacent waves Number of waves per second Rate of advance of a wave Number of waves in 1 m or 1 cm nm or m
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MM 2011 AH Waves summary QuantitySymbolUnitsDescription Frequency Wavelength Velocity Wavenumber c f (or ) m Hz ms -1 cm -1 or m -1 Distance between adjacent waves Number of waves per second Rate of advance of a wave Number of waves in 1 m or 1 cm
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MM 2011 AH Wavelength, /m 1001 10 -3 10 -6 10 -9 10 -12 Wavelength, /nm 700600500400 visible Get X Unless Very Ill Men Start Resting microwaves radio & TVinfrared rays UV rays X-raysgamma raysshort Electromagnetic spectrum Past papers 2013 Q2 -4; 2012 Q1
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MM 2011 AH Quanta – small bundles or packets of energy. - fixed size so transfer of energy occurs in fixed amounts Electromagnetic radiation is also regarded as a stream of particles – photons (wave-particle duality). E = h f h is Planck’s constant = 6.63 x 10 -34 Js Energy of radiation for a photon can be calculated using For one mole of photons E = L h f or E = L h c where L is Avogadro’s constant The energy of radiation is calculated in Jmol -1 or kJmol -1 or E = h c p4 LTS Q1 & 2 (E = h ) (E = L h )
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