Fall 07 HW8 solution - Homework Assignment#8 Name...

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Homework Assignment #8 Name____________________________ Laboratory Section (circle one) MW1.30 MW6.30 TTh7 1. Chapter 8, Problem 9, 12, 14, 22, 24, 32, 36, 44, 46, 48, 52, 54, 56, 58, 60, 69, 71, 89 8.9 Shielding occurs when inner electrons protect or shield outer electrons from the full nuclear attractive force. The effective nuclear charge is the nuclear charge an electron actually experiences. As the number of inner electrons increases, the effective nuclear charge decreases. 8.12 a) The l = 1 quantum number can only refer to a p orbital, and the m l value of 0 specifies one particular orbital, which hold a maximum of 2 electrons. b) The 5 p orbitals, like any p orbital, can hold a maximum of 6 electrons. c) The l = 3 quantum number can only refer to a f orbital. These quantum numbers designate the 4 f orbitals, which hold a maximum of 14 electrons. 8.14 a) 2 electrons, at most, can be found in any s orbital. b) The l = 2 quantum number can only refer to a d orbital. These quantum numbers designate the 3 d orbitals, which hold a maximum of 10 electrons. c) A maximum of 10 electrons can be found in the d orbitals. 8.22 a) n = 2; l = 0; m l = 0; m s = +1/2 b) n = 4; l = 1; m l = 1; m s = -1/2 c) n = 6; l = 0; m l = 0; m s = +1/2 d) n = 2; l = 1; m l = -1; m s = +1/2 8.24 a) Br: 1 s 2 2 s 2 2
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