Bookcover of 18-Electron rule
Booktitle:

18-Electron rule

Alphascript Publishing (2010-09-17 )

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ISBN-13:

978-613-0-63647-0

ISBN-10:
6130636474
EAN:
9786130636470
Book language:
English
Blurb/Shorttext:
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.The 18-electron rule is a rule of thumb used primarily in transition metal chemistry for characterizing and predicting the stability of metal complexes. Valence shells of a transition metal can accommodate 18 electrons: 2 in each of the five d orbitals (10 in total); 2 in each of the three p orbitals (6 in total); and 2 in the s orbital (see Electron counting). In practice, of course, these orbitals cannot directly accept electrons, otherwise one would encounter ions such as Fe10− and Pt8−. However, combination of these atomic orbitals with ligand orbitals gives rise to nine molecular orbitals which are either metal-ligand bonding or non-bonding. (There are also some higher energy anti-bonding orbitals). The complete filling of these nine lowest energy orbitals with electrons, whether those electrons originate from the metal or from any ligands, is the basis of the 18-electron rule. When the metal has 18 electrons, it has then achieved the same electron configuration as the noble gas at the end of the period.
Publishing house:
Alphascript Publishing
Website:
https://www.alphascript-publishing.com/
Edited by:
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Number of pages:
92
Published on:
2010-09-17
Stock:
Available
Category:
Electricity, magnetism, optics
Price:
34.00 €
Keywords:
Electron, Rule, Shell, transition, Metal, Thumb, Counting, Atomic.

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