PS7K - Quantum Numbers and AOs.pdf - CHEMISTRY 1007 Name Problem Solving Activity#7 October 10 11(can also be turned in by October 16 for participation

PS7K - Quantum Numbers and AOs.pdf - CHEMISTRY 1007 Name...

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CHEMISTRY 1007 Name: ____________________________ Problem Solving Activity #7 October 10 & 11 (can also be turned in by October 16 for participation credit) Given constants: c=2.998x10 8 m/s h=6.626x10 -34 J s 1mile=1.609km Given Formulas: = h/p = h/mv ( x)( p) h/4 1. (5 pts). If n=5, what are the allowed values of the quantum numbers l ? What are the allowed values of m l for each l ? How many orbitals will be in each l subshell? What is the maximum number of electrons that can be in each l subshell? 2. (8%) The letters A through F represent atomic orbitals. Provided the information below, fill in the blanks on the table. Total nodes = n - 1 angular nodes = l radial nodes = n - 1- l Total Nodes Radial Nodes
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Unformatted text preview: Angular Nodes Orbitals in a Degenerate Set Name of Orbital A 5 3 2 5 6d B 7 3 4 9 8g C 5 5 0 1 6s D 3 2 1 3 4p E 3 1 2 5 4d F 3 3 0 1 4s 3. (3%) Calculate the de Broglie wavelength (in m) of a tennis ball (mass = 54 g) traveling at 110.0 miles per hour. 4. (7%) During photosynthesis, an electron is believed to travel 25Å (1Å = 1x10-10 m) in one picosecond (1ps = 10-12 s). The uncertainty in the time measurement is 0.5 ps. Use the Heisenberg uncertainty principle calculate the uncertainty in the position of the electron at any point during its 25Å journey. (You can assume that the distance, 25Å, and the mass of an electron, 9.109x10-31 kg, are known with a relatively high certainty.)...
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