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Complete this on a new sheet of paper! You will be turning this in. Bellwork 3/24 Find the number of protons, electrons and neutrons for the following elements: Oxygen (O) Xenon (Xe) Zirconium (Zr) Number of Protons = Atomic # Number of Electrons = Atomic # Number of Neutrons = Mass # - atomic #

Oxygen (O) Number of Protons = Atomic # Number of Electrons = Atomic # Number of Neutrons = Mass # - atomic # Protons = Electrons = Neutrons = 8 8 16-8=8

Xenon (Xe) p+, e-, n Number of Protons = Atomic # Number of Electrons = atomic # Number of Neutrons = Mass # - atomic # Protons = Electrons = Neutrons = 54 54 131-54=77

Zirconium (Zr) p+, e-, n Number of Protons = Atomic # Number of Electrons = atomic # Number of Neutrons = Mass # - atomic # Protons = Electrons = Neutrons = 40 40 91-40=51

Create a Bohr diagram for the following: Nitrogen (N) Neon (Ne) Potassium (K) 1st energy level = 2 2nd energy level = 8 3rd energy level = 18

Summary Number of Protons = Atomic # Number of Electrons = Atomic # Number of Neutrons = Mass # - atomic #