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3D gridbuilding - science

3D GRIDBUILDING - SCIENCE - CHEMISTRY

DOT AND CROSS DIAGRAM

3D gridbuilding - science

3D gridbuilding - science - biology - chemistry - physics
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do you have an original graphic we could add here, relating to 'dot and cross diagram'? please see the main Gridbuilding page for details of how to get in touch




Carbon Dioxide - dot-cross - original graphic by Ben Mills




do you have an original graphic we could add here, relating to 'dot and cross diagram'? please see the main Gridbuilding page for details of how to get in touch




Dot and cross diagrams are simple diagrams which can be drawn to show the arrangement of the bonding (valency) electrons in the atoms within compounds. Dots and crosses are used to differentiate between the electrons of the different atoms and show their relative positions.


Dot and cross diagrams will, therefore, illustrate whether a compound is ionic - in which case valency electron(s) are completely transferred from one atom to another, resulting in the formation of ions - or covalent, where one or more pair(s) of valency electrons are shared between atoms.


In the diagram on the left, a dot and cross diagram is drawn for carbon dioxide. This shows that this is a covalent compound: each oxygen atom can be seen to have 6 valency electrons (dots), the carbon atom 4 (crosses).


There is a sharing of two electron pairs between each oxygen atom and the carbon atom (one dot and one cross making a pair). The bonding is covalent - the dots and crosses are equally placed between the atoms.



Anne Evans



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arrangement
atoms
bonding
bonds
Carbon
carbon dioxide
compounds
covalent
cross
diagrams
difference
differentiate
dioxides
DOT AND
CROSS DIAGRAM
dots
drawn
electrons
equal
form
illustration
ionic
ions
location
make
Oxygen
pair
place
position
relative
result
seen
share
show
simple
transfer
use
valency
valency electrons
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BACK LINKS
DOT AND CROSS DIAGRAM
BACK LINKS

A-Z sundry physics biology chemistry A-Z Physics A-Z Biology A-Z Chemistry A-Z sundry A-Z

3D gridbuilding - science - biology - chemistry - physics
"FORWARD LINKS" go to factors that "dot and cross diagram" mentions ...
3D gridbuilding - science - biology - chemistry - physics
... "BACK LINKS" go to pages that mention "dot and cross diagram" (to provide context and more info)
3D gridbuilding - science - biology - chemistry - physics

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