|
|
|
|
3m. The covalent bonding in the nitrogen molecule Doc Brown's Chemistry: Chemical Bonding and structure GCSE level, IGCSE, O, IB, AS, A level US grade 9-12 level Revision Notes *
A further selection of dot & cross electronic Lewis diagrams for covalent bonding in molecules, particularly simple organic molecules. Only the outer valency electrons are shown for carbon, nitrogen, oxygen and chlorine. Can you deduce these electronic diagrams of covalently bonded molecules for yourself? Ex. 10 nitrogen N2; Ex. 11 ethane C2H6; Ex. 12 chloromethane CH3Cl and Ex. 13 methanol CH3OH. Electronic origin of the diagrams showing the outer electrons of N, C, Cl and O: N at. no. 7 (2.5), H at. no. (1), C at. no. 6 (2.4), Cl at. no. 17 (2.8.7) and O at. no. 8 (2.6) plus a variety of crosses and blobs! The valencies or combining power in these examples are N 3, H 1, C 4, Cl 1 and O 2, so, these valency numbers correspond to the number of electrons the atom needs to give a stable outer shell - that's what valency is all about! Only the outer electrons are shown in the dot and cross Lewis diagram of nitrogen below.
Comments
What next?
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
metals \ non-metals (zig-zag line)
The full
Lewis dot and cross diagram for the nitrogen molecule
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| Website content © Dr Phil Brown 2000+. All copyrights reserved on revision notes, images, quizzes, worksheets etc. Copying of website material is NOT permitted. Exam revision summaries & references to science course specifications are unofficial. | ||||
