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
Most elements can be considered metals. This is a list of metals in order of increasing atomic number and a summary of their properties.| Science Notes and Projects
Metalloids or semimetals are elements containing properties midway between metals and nonmetals. This is a list of the metalloid elements.| Science Notes and Projects
Learn about valence electrons. Get the definition and a periodic table showing the number of valence electrons for each element.| Science Notes and Projects
Learn the difference between ionic and covalent bonds. See examples of the two types of chemical bonding and how to predict which type of bond will form.| Science Notes and Projects
Get the ionic bond definition and examples in chemistry. Learn which types of atoms participate in ionic bonding.| Science Notes and Projects
Get the atomic nucleus definition and facts, including a look at what is inside the nucleus of an atom and how big it is.| Science Notes and Projects
Learn about the types of chemical bonds and get examples of ionic, covalent, metallic, and hydrogen bonding in chemistry.| Science Notes and Projects
Get the definition of electronegativity in chemistry. Learn about the trend of electronegativity on the periodic table of the elements.| Science Notes and Projects
Get the covalent bond definition and examples in chemistry. Learn about the different types of covalent bonds and which elements participate.| 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