Things hidden in the periodic table

This week, I went to Chem tutoring it helped. We also learned about isotopes and mostly about the periodic table. I never knew it was divide up into so many things. Yes in Bio we did use the periodic table but we didn't learn it like Chem. You can use the periodic table in some many ways. It tells you a lot about the element. You can find how many protons, neutrons, electrons, the atomic number, mass weight, mass number, and element symbol. Chem is really interesting. Wow. GOT TO KNOW THE UNITS CAUSE THE UNITS ARE SO KEY!!!!!