LewisDraw
Drawing Lewis structures is an essential part of chemistry. A Lewis structure, also known as a Lewis dot diagram, is a visual representation of how valence electrons are distributed around atoms in a molecule, ion or radical. The bonding between atoms is depicted as a line consisting of two electrons. Non-bonding electrons are placed on atoms as dots - two dots represent a "lone pair" while one dot depicts a radical. The primary goal in the placement of valence electrons is to achieve an "octet" of electrons around each atom (except for H (2), He (2), Li (2), Be (4) and B (6) which have less than 8 electrons . . . their typical electrons are shown in parentheses). This "octet rule" was developed by Gilbert N. Lewis to illustrate how atoms share electrons to reach stability.
The LewisDraw drawing canvas is embedded and integrated into the Chem21Labs homework and lab report webpages. The web-based drawing canvas is written in HTML5 and Javascript (JS) - the language that all broswer's read without a plugin. LewisDraw is accessible from any operating system, however the application is currently not touch enabled for click/drag events.
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