TABLE 7.4 Some Properties of the Alkali Metals Melting Point (°C) Density (g/cm³) Atomic Electron Radius (Å) (kJ/mol) Configuration Element Lithium [He]2s' 181 0.53 1.28 520 0.97 496 Sodium 98 1.66 [Ne]3s! Potassium 63 0.86 2.03 419 [Ar]4s! Rubidium 39 1.53 2.20 403 [Kr]5s' 1.88 2.44 Cesium 28 376 [Xe]6s!
TABLE 7.4 Some Properties of the Alkali Metals Melting Point (°C) Density (g/cm³) Atomic Electron Radius (Å) (kJ/mol) Configuration Element Lithium [He]2s' 181 0.53 1.28 520 0.97 496 Sodium 98 1.66 [Ne]3s! Potassium 63 0.86 2.03 419 [Ar]4s! Rubidium 39 1.53 2.20 403 [Kr]5s' 1.88 2.44 Cesium 28 376 [Xe]6s!
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter9: Ionic And Covalent Bonding
Section: Chapter Questions
Problem 9.111QP: Compare the properties of an ionic material such as sodium chloride with a room-temperature ionic...
Related questions
Question
(a) Write the electron configuration for Li and estimate the
effective nuclear charge experienced by the valence electron.
(b) The energy of an electron in a one-electron atom or ion equals (-2.18 x 10-18 J) aZ2/n2 b, where Z is the nuclear charge
and n is the principal quantum number of the electron. Estimate
the first ionization energy of Li. (c) Compare the result
of your calculation with the value reported in Table 7.4 and
explain the difference. (d) What value of the effective nuclear
charge gives the proper value for the ionization energy? Does
this agree with your explanation in part (c)?
![TABLE 7.4
Some Properties of the Alkali Metals
Melting
Point (°C)
Density
(g/cm³)
Atomic
Electron
Radius (Å)
(kJ/mol)
Configuration
Element
Lithium
[He]2s'
181
0.53
1.28
520
0.97
496
Sodium
98
1.66
[Ne]3s!
Potassium
63
0.86
2.03
419
[Ar]4s!
Rubidium
39
1.53
2.20
403
[Kr]5s'
1.88
2.44
Cesium
28
376
[Xe]6s!](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F14ae3d70-3412-41d0-93f2-261e632487cb%2F1d6057bc-8450-4da1-a29b-4aae5b9bc9cb%2F5wxrmbk.png&w=3840&q=75)
Transcribed Image Text:TABLE 7.4
Some Properties of the Alkali Metals
Melting
Point (°C)
Density
(g/cm³)
Atomic
Electron
Radius (Å)
(kJ/mol)
Configuration
Element
Lithium
[He]2s'
181
0.53
1.28
520
0.97
496
Sodium
98
1.66
[Ne]3s!
Potassium
63
0.86
2.03
419
[Ar]4s!
Rubidium
39
1.53
2.20
403
[Kr]5s'
1.88
2.44
Cesium
28
376
[Xe]6s!
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 1 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
![General Chemistry - Standalone book (MindTap Cour…](https://www.bartleby.com/isbn_cover_images/9781305580343/9781305580343_smallCoverImage.gif)
General Chemistry - Standalone book (MindTap Cour…
Chemistry
ISBN:
9781305580343
Author:
Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:
Cengage Learning
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
![Chemistry: An Atoms First Approach](https://www.bartleby.com/isbn_cover_images/9781305079243/9781305079243_smallCoverImage.gif)
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
![General Chemistry - Standalone book (MindTap Cour…](https://www.bartleby.com/isbn_cover_images/9781305580343/9781305580343_smallCoverImage.gif)
General Chemistry - Standalone book (MindTap Cour…
Chemistry
ISBN:
9781305580343
Author:
Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:
Cengage Learning
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
![Chemistry: An Atoms First Approach](https://www.bartleby.com/isbn_cover_images/9781305079243/9781305079243_smallCoverImage.gif)
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781133611097/9781133611097_smallCoverImage.gif)
![Principles of Modern Chemistry](https://www.bartleby.com/isbn_cover_images/9781305079113/9781305079113_smallCoverImage.gif)
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
![World of Chemistry, 3rd edition](https://www.bartleby.com/isbn_cover_images/9781133109655/9781133109655_smallCoverImage.jpg)
World of Chemistry, 3rd edition
Chemistry
ISBN:
9781133109655
Author:
Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:
Brooks / Cole / Cengage Learning