Lewis Dot Diagrams & Bohr Models Chemistry Worksheet - Term 2 Cumulative Review
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9Term 2 Cumulative Review
Define the following terms:
1. atom
7. Isotope
2. electron
8. Mass number
3. nucleus
9. atomic mass unit
4. Proton
10. Ion
5. Neutron
11. Valence electron
6. atomic number
_______________________________________________________________________
12. Label the following atom. What element does it represent? ____________________
13. Fill in the following table:
Particle
Symbol
Location
Charge
Electron
Proton
Neutron
Lewis Dot Diagrams & Bohr Models
14. Each dot represents a single _____________ _______________.
15. Based on ________ ___________ from the periodic table, you can determine the number of
valence electrons. Therefore, all elements from the same _____________ will have the same
number of valence electrons.
16. Draw the Lewis Dot Diagram for the following elements: Lithium, Calcium, Boron, Carbon,
Phosphorous, Oxygen, Chlorine, and Neon.
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