Stručni rad

https://doi.org/10.15255/KUI.2018.006

Chemistry in Teaching:
How to Write Lewis Dot Structures

Branka Blagović ; Sveučilište u Rijeci, Medicinski fakultet, Braće Branchetta 20, 51 000 Rijeka
Nenad Raos (ur.)

Sažetak

Lewis structures or Lewis dot structures show the way in which the atoms in the molecule are linked to each other, as well as the arrangement of valent electrons of all atoms in the molecule. Applying simple rules, which are more in accordance with the molecular orbital theory, the dot structures even of complicated molecules can be written with ease. If beside those rules we apply the VSEPR theory, we can deduce the structure and the shape of the molecule, and from the structure of the molecule, we can deduce the hybridization of the atoms. When we calculate the formal charges, from their values we can conclude if the structure is stable or more stable resonance structures exist. If the molecule in consideration contains atoms from the third period and on, in that case, more stable structures can be obtained by the formation of multiple bonds and expanded valence shell. In the present paper, the application of the above mentioned is shown step by step on several examples.


This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

Lewis structures; Lewis dot structures; VSEPR theory; formal charge; resonance; hybridization

Hrčak ID:

200381

URI

https://hrcak.srce.hr/200381

Datum izdavanja:

5.6.2018.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.898 *