1. 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 #

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

3. 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

4. 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

5. 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

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