1. To what group in the periodic table do the elements listed belong ? 2. Why these elements are called the noble gases ? What is their common characteristic ? 3. Why are light bulbs filled with argon gas rather than oxygen gas ?
1. To what group in the periodic table do the elements listed belong ? 2. Why these elements are called the noble gases ? What is their common characteristic ? 3. Why are light bulbs filled with argon gas rather than oxygen gas ?
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter7: Electronic Structure
Section: Chapter Questions
Problem 7.77QE
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Question
Study the table below and answer the questions that follow.
1. To what group in the periodic table do the elements listed belong ?
2. Why these elements are called the noble gases ? What is their common characteristic ?
3. Why are light bulbs filled with argon gas rather than oxygen gas ?
4. How many valence electrons do noble gases have ? Draw the Lewis dot symbol of the noble gas Xe.
5. Can we relate the number of valence electrons with the stability of the element ?
Transcribed Image Text:Atomic
Number
Element
Electron Configuration
1s2
1s2 2s2 2ps
1s2 2s2 2p6 3s? 3p6
1s2 2s2 2p® 3s2 3p$ 3d10 4s? 4p®
1s2 2s2 2p 3s2 3p 3d10 4s2 4p6 4dT0 4f14 5s 5p®
1s2 2s? 2p 3s² 3p6 3d10 4s2 4p® 4d0 4f14 5s2 5p6 5d10
6s? 6ps
He
Ne
10
Ar
18
Kr
36
Xe
54
Ra
86
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