Learn what the main group elements are, which elements are included, and why these elements are important.| Science Notes and Projects
Learn how to draw a Lewis structure to show the bonding and valence electrons in a molecule. See why Lewis structures are important.| Science Notes and Projects
This list of electron configurations of elements shows all the elements by increasing atomic number. Print the PDF as a useful study sheet.| Science Notes and Projects
October 23 is Gilbert Newton Lewis' birthday. Lewis best known for valence bond theory and dot structures. Find out what else happened today in science history.| Science Notes and Projects
Learn about the noble gas configuration of atoms. Get a list of electron configurations for all 118 elements.| Science Notes and Projects
Learn what noble gases are, which elements are included in the group, and what properties distinguish a noble gas from other element of the periodic table.| Science Notes and Projects
Learn what an electron is. Get its definition, learn where to find electrons, and understand the properties of this type of matter.| Science Notes and Projects
The atom is the unit of matter that identifies a chemical element. Here are 10 interesting atom facts for education and entertainment.| Science Notes and Projects