User talk:Jamesthomson27

Welcome
Hello and welcome to Wikipedia. Thank you for your contributions. I hope you like the place and decide to stay. The following links will help you begin editing on Wikipedia:
 * Welcome!
 * The five pillars of Wikipedia
 * How to edit a page
 * Editing tutorial
 * Picture tutorial
 * How to write a great article
 * Naming conventions
 * Manual of Style


 * Please bear these points in mind while editing Wikipedia:
 * Respect copyrights – do not copy and paste text or images directly from other websites.
 * Maintain a neutral point of view – this is one of Wikipedia's core policies.
 * Take particular care while adding biographical material about a living person to any Wikipedia page and follow Wikipedia's Biography of Living Persons policy. Particularly, controversial and negative statements should be referenced with multiple reliable sources.
 * No edit warring or sock puppetry.
 * If you are testing, please use the Sandbox to [ do so].
 * Do not add troublesome content to any article, such as: copyrighted text, libel, advertising or promotional messages, and text that is not related to an article's subject. Deliberately adding such content or otherwise editing articles maliciously is considered vandalism; doing so will result in your account or IP being blocked from editing.
 * Do not use talk pages as discussion or forum pages as Wikipedia is not a forum.

The Wikipedia tutorial is a good place to start learning about Wikipedia. If you have any questions, see the help pages, add a question to the village pump or ask me on my talk page. By the way, you can sign your name on Talk and discussion pages using four tildes, like this: &#126;&#126;&#126;&#126; (the software will replace them with your signature and the date). Again, welcome! Nasnema  Chat  11:20, 26 February 2012 (UTC)

Covalent bond
You have copy/pasted a text into that article from a webpage licensed as BY-NC-SA. This license is incompatible with wikipedia because it allows only non-commercial use. Thus it needs to be rephrased (or the source license changed). Materialscientist (talk) 11:27, 26 February 2012 (UTC)