/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 89 What is the noble gas core? How ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 7: Problem 89

What is the noble gas core? How does it simplify the writing of electron configurations?

Short Answer

Expert verified
The noble gas core represents the electron configuration of the nearest noble gas with fewer electrons, indicating its full valence electron shell. It simplifies the writing of electron configurations by allowing us to summarize core electrons with the symbol of the previous noble gas in the periodic table, such as [Ne]3s虏3p鈦� for Chlorine instead of writing out the full configuration.

Step by step solution

01

Defining the Noble Gas Core

A noble gas core represents the electron configuration of the previous noble gas. Noble gases have a full valence electron shell making them very stable. By using a noble gas core, we can show only the outer electrons (the valence electrons) of an atom, which are the ones involved in chemical reactions.
02

Electron Configurations

Electron configurations describe the arrangement of electrons in an atom. The full electron configuration of an atom can be lengthy to write out, especially for atoms with many electrons. For instance, the electron configuration of Chlorine (17 electrons) is written as 1s虏2s虏2p鈦�3s虏3p鈦�.
03

Simplifying Electron Configurations with the Noble Gas Core

Using the noble gas core can greatly simplify the writing of electron configurations. We identify the noble gas that precedes the atom in question and use its symbol in brackets to represent the core electrons. For example, Chlorine is preceded by the noble gas Neon (10 electrons: 1s虏2s虏2p鈦�). So, the shorthand electron configuration for Chlorine becomes [Ne]3s虏3p鈦�, indicating that Chlorine has the same core electron configuration as Neon with the addition of five more electrons in the 3rd shell.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

How does de Broglie's hypothesis account for the fact that the energies of the electron in a hydrogen atom are quantized?

What are photons? What role did Einstein's explanation of the photoelectric effect play in the development of the particle-wave interpretation of the nature of electromagnetic radiation?

Give two everyday examples that illustrate the concept of quantization.

Is it possible for a fluorescent material to emit radiation in the ultraviolet region after absorbing visible light? Explain your answer.

Calculate the total number of electrons that can occupy (a) one \(s\) orbital, (b) three \(p\) orbitals, (c) five \(d\) orbitals, (d) seven \(f\) orbitals.
See all solutions

Recommended explanations on Chemistry Textbooks

Kinetics

Read Explanation

Making Measurements

Read Explanation

Organic Chemistry

Read Explanation

Chemical Analysis

Read Explanation

Nuclear Chemistry

Read Explanation

Inorganic Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.