Introductory Chemistry: An Active Learning Approach
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN: 9781305079250
Author: Mark S. Cracolice, Ed Peters
Publisher: Cengage Learning
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Chapter 12, Problem 1E

Write the electronic configuration for the ions of the third period element that form monoatomic ions that are isoelectronic with a noble gas atom. Also, identify the noble gas atoms having those configurations.

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Interpretation Introduction

Interpretation:

The electronic configuration for the ions of the third period element that form monoatomic ions that are iso-electronic with a noble gas atom is to be stated. The noble gas atoms having those configurations are to be identified.

Concept introduction:

The arrangement of electrons in the energy sublevels is explained by the electron configuration of an atom. The electron configuration of an atom can be written according to the arrangement of energy levels as shown below.

1s<2s<2p<3s<3p<4s<3d<4p<5s<4d<5p<6s

In the modern periodic table, the horizontal rows are known as periods, whereas vertical columns are known as groups. There are 7 periods and 18 groups in a modern periodic table.

Answer to Problem 1E

The electronic configuration of Na+ is 1s22s22p6. It is isoelectronic with with neon, Ne. The electronic configuration of Cl is 1s22s22p63s23p6. It is isoelectronic with argon, Ar.

Explanation of Solution

An iso-electronic series is a group of ions that contain the same number of electrons.

The elements in the third period are Na,Mg,Al,Si,P,S,Cl,Ar. Among these elements, Na and Cl are monoatomic elements.

The atomic number of Na is 11.

The electronic configuration of Na is 1s22s22p63s1. It can lose 1 electron form the outermost shell. The resulting cation, Na+ is isoelectronic with neon, Ne.

The electronic configuration of Na+ is 1s22s22p63s0.

The electronic configuration of Ne is 1s22s22p63s0.

The atomic number of Cl is 17.

The electronic configuration of Cl is 1s22s22p63s23p5. It can gain 1 electron in the outermost shell. The resulting anion, Cl is isoelectronic with argon, Ar.

The electronic configuration of Cl is 1s22s22p63s23p6.

The electronic configuration of Ar is 1s22s22p63s23p6.

Conclusion

The electronic configuration of Na+ is 1s22s22p63s0. It is isoelectronic with with neon, Ne. The electronic configuration of Cl is 1s22s22p63s23p6. It is isoelectronic with argon, Ar.

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Chapter 12 Solutions

Introductory Chemistry: An Active Learning Approach

Ch. 12 - Prob. 11ECh. 12 - Prob. 12ECh. 12 - Prob. 13ECh. 12 - Prob. 14ECh. 12 - Prob. 15ECh. 12 - Prob. 16ECh. 12 - Prob. 17ECh. 12 - Prob. 18ECh. 12 - Prob. 19ECh. 12 - Prob. 20ECh. 12 - Prob. 21ECh. 12 - Consider the following bonds: GeSe, BrSe, BrGe....Ch. 12 - Prob. 23ECh. 12 - Consider the following bonds: TeSe, OTe, OSe....Ch. 12 - Prob. 25ECh. 12 - Prob. 26ECh. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Prob. 29ECh. 12 - What is the maximum number of atoms to which a...Ch. 12 - Prob. 31ECh. 12 - Prob. 32ECh. 12 - Prob. 33ECh. 12 - Prob. 34ECh. 12 - Prob. 35ECh. 12 - Prob. 36ECh. 12 - Prob. 37ECh. 12 - Prob. 38ECh. 12 - Prob. 39ECh. 12 - Prob. 40ECh. 12 - Prob. 41ECh. 12 - Prob. 42ECh. 12 - Prob. 43ECh. 12 - Prob. 44ECh. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Prob. 48ECh. 12 - Which orbitals of each atom overlap in forming a...Ch. 12 - Prob. 50ECh. 12 - Prob. 51ECh. 12 - A monatomic ion with a 2 charge has the electron...Ch. 12 - Prob. 53ECh. 12 - Prob. 54ECh. 12 - Prob. 55ECh. 12 - Prob. 56ECh. 12 - Prob. 57ECh. 12 - Prob. 58ECh. 12 - Prob. 59ECh. 12 - Prob. 60ECh. 12 - Prob. 61ECh. 12 - Which ions among the following are isoelectronic...Ch. 12 - Prob. 12.2TCCh. 12 - Prob. 12.3TCCh. 12 - Prob. 12.4TCCh. 12 - Prob. 12.5TCCh. 12 - Prob. 1CLECh. 12 - Prob. 2CLECh. 12 - Prob. 3CLECh. 12 - Prob. 4CLECh. 12 - Prob. 5CLECh. 12 - Prob. 6CLECh. 12 - Write the electron configurations for the oxide...Ch. 12 - Arrange the following bonds in order of decreasing...
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