Atoms, Subatomic – TheWorksheets.CoM

Atoms, Subatomic Particles, & the Periodic Table - rocklinusd.org

5. Use your periodic table and your notes to fill in the following table: Element chemical symbol atomic number #of protons # of electrons # of neutrons mass number Avg atomic mass beryllium 5 fluorine 10 6 12 chlorine 18 35.45 lead potassium 19 39 tin