CHAPTER 2 ATOMIC STRUCTURE AND INTERATOMIC BONDING 2.6 Allowed walles for the qu
ID: 1842835 • Letter: C
Question
CHAPTER 2 ATOMIC STRUCTURE AND INTERATOMIC BONDING 2.6 Allowed walles for the quantum mumbers of electrons are as follows: The relanionships between m and the shell designariots are noted in Table 2.1. Relative to the sahshells 1-0 corresponds to an s sabohell corresponds to a p subshell 1" I 1- 2 corresponds to a d subshell I-3 corresponds to an f subshell For the K shell. the four quantum mumbers for each of the two electrots in the ls state. in the order of are 1000 and 1000- Write the fown numbers for all of the electrons in the Land M shells and Rose which correspond to the p. and d sabshells 2.11 Without consulning Figure 26 or Table 2.2. determine whether each ofthe elecinon configurations given below is an inert gas, a halogen, an alkali metal an alkaline earth metal, or a transition metal Jarstiliyow choices. 2.14 The potential energy between nio adjacent ions, E man represented by the sum of Equations sand 29: that is. Excerpts from this work may be reproduced by instructors for distribution on a not-for-profit basis for lesing or inanuctkonal Purrones enly to students cnrolled in courses for which the leubook has been adopted atler reproulution or uanslarion ofalis work tharExplanation / Answer
Ans-2.6) Given,
Allowed values for quantum number of electrons are;
n = 1,2,3,.....
l = 0,1,2,3,.......n-1
ml = 0, +1,+2, +3,......,+l
ms = +(1/2)
For L-state,
n=2 and eight electron states are possible;
Possible l values are 0 and 1;
Possible ml values are 0 and +1;
Possible ms values are +(1/2);
Therefore, the quantum numbers for s-states are 200(1/2) and 200(-1/2).
The quantum numbers for p-states are 210(1/2), 210(-1/2), 211(1/2), 211(-1/2), 21(-1)(1/2), 21(-1)(-1/2)
For M-state,
n=3 and eighteen electron states are possible;
Possible l values are 0, 1 and 2;
Possible ml values are 0, +1 and +2;
Possible ms values are +(1/2);
Therefore, the quantum numbers for s-states are 300(1/2) and 300(-1/2).
The quantum numbers for p-states are 310(1/2), 310(-1/2), 311(1/2), 311(-1/2), 31(-1)(1/2), 31(-1)(-1/2)
The quantum numbers for d-states are 320(1/2), 320(-1/2), 321(1/2), 321(-1/2), 32(-1)(1/2), 32(-1) (-1/2), 322(1/2), 322(-1/2), 32(-2)(1/2), 32(-2)(-1/2).
Ans-2.11)
(a) 1s22s22p63s23p63d74s2 - here d-subshell is incomplete. so, electron configuration is of a transition metal.
(b) 1s22s22p63s23p6- here 3s and 3p -subshells are filled. so, electron configuration is of an inert gas.
(c) 1s22s22p5- here one electron is deficient from having a filled L-shell. so, electron configuration is of a halogen.
(d) 1s22s22p63s2- here electron configuration is of an alkaline earth metal because oh two s-electrons.
(e) 1s22s22p63s23p63d24s2 - here d-subshell is incomplete. so, electron configuration is of a transition metal.
(f) 1s22s22p63s23p64s1- here electron configuration is of an alkaline metal because of single s-electrons.