Learn about valence electrons. Get the definition and a periodic table showing the number of valence electrons for each element.| Science Notes and Projects
Get the atomic number definition. See examples of the atomic number and learn how it differs from mass number.| 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 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
Learn what an atom is in science. Get the atom definition, examples, and learn about atomic structure, size, and shape.| Science Notes and Projects
Learn what a proton is, where it's found in the atom, and get interesting facts about protons.| Science Notes and Projects
Get the definition of a neutron in chemistry in physics. Learn interesting facts about neutrons and their role within an atom.| 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