0669-6.09=K。 Check: PNO. C5.(a)Ozone(O3)is destroyed in the upper atmosphere according to the reaction O (g)+O(g). which requires breaking one of the bonds in the ozone molecule.If the bond energy is 445 kJ mol,what is the maximum wavelength of photon capable of doing this(in nm)? 445 kJ mol/6.02x 1023 mol=7.39x 1022 kJ per bond=7.39x1019 J per bond E=hv=h线 hs.X=e-663×1021s30x10ms-269×107m=269nm 7.39×10-19J (b)We know about s,p.d and f-orbitals.Electrons will begin to fill g-orbitals after the f-orbitals are filled.Use Aufbau and your knowledge of quantum numbers to determine the atomic number of the lightest element(as yet undiscovered)that will contain an electron in a g-orbital. Orbitals are filled according to the Aufbau principle.We can determine when the first g-orbital will accept an electron accordingly.The first g-orbital will fill in the n=5 principle shell,and energy-wise,just after the 8s orbital fills.Thus,count the electrons up to that point and add one: 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 5g 6s 6p 6d 6f 6g 7s Tp 7d 7f 7g 8s 8p 8d 8f 8g 1s22s22p3s23p4s23d04p5s24d05p6s24f45dl06p67s2546dl07p8s25g >Check: N O p NO p . . K p . = == 2 4 2 2 2 0 669 6 09 0 331 C5. (a) Ozone (O3) is destroyed in the upper atmosphere according to the reaction O3(g) ⎯UV light ⎯⎯→ O2(g) + O(g), which requires breaking one of the bonds in the ozone molecule. If the bond energy is 445 kJ mol-1, what is the maximum wavelength of photon capable of doing this (in nm)? 445 kJ mol-1 / 6.02 x 1023 mol-1 = 7.39 x 10-22 kJ per bond = 7.39 x 10-19 J per bond c Eh h hc . J s ( . m s ) thus, . m nm E .J − − − − = ν= λ × × λ= = = × = × 34 8 1 7 19 6 63 10 3 00 10 2 69 10 269 7 39 10 (b) We know about s, p, d and f-orbitals. Electrons will begin to fill g-orbitals after the f-orbitals are filled. Use Aufbau and your knowledge of quantum numbers to determine the atomic number of the lightest element (as yet undiscovered) that will contain an electron in a g-orbital. Orbitals are filled according to the Aufbau principle. We can determine when the first g-orbital will accept an electron accordingly. The first g-orbital will fill in the n=5 principle shell, and energy-wise, just after the 8s orbital fills. Thus, count the electrons up to that point and add one: 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 5g 6s 6p 6d 6f 6g 7s 7p 7d 7f 7g 8s 8p 8d 8f 8g 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f145d10 6p6 7s2 5f14 6d10 7p6 8s2 5g1 7