by alyssa sparks
what you should know about periodic tables
periodic tables have atomic numbers a symbol with the word it comes with and the atomic mass. the periodic tables also have non- metals, metals, and meterlloids that go with it. they have elements (Element- a pure substance.) and a compound (compound- two or more elements combined together. And the last thing they have is atoms (atoms- protons, nutrons, and electrons).
Atomic Number,Symbol, and Atomic Mass
Atomic Number is the protons in the nucles for example (silicone the atomic number is 14).