Can someone check my Lewis dot diagrams?

[linuxux]

Hi, I am not too sure about my lewis dot diagrams, can someone check them and let me know if anything is wrong with them, thanks.

 

[Vagrant]

Why don't you try Applets on chemistry? It even tells you where you are wrong.

edit: here's the address -http://www.bpreid.com/samples.html

 

[linuxux]

Why don't you try Applets on chemistry? It even tells you where you are wrong.

whats that? is it a program? if so its not well know, nothing on Google related. can you post a link.

 

[linuxux]

actually, i just found a good link with a video, http://www.101science.com/Chemistry.htm#LEWIESDOT

 

[Vagrant]

Yes it's a good link. I assumed that you know the theory of lewis dot structures, VSEPr and hybridisation. So the applets are merely prctice tools.
Anyways the SF6 structure is supposed to be octahedral.

 

[linuxux]

no i just started it, but thanks for the help.