Lewis Dot Diagrams & Bohr Models Chemistry Worksheet - Term 2 Cumulative Review Page 2
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917. Draw the Bohr Models for the elements indicated (include number of protons and neutrons in
the nucleus).
Carbon
Oxygen
Calcium
18. Each ring on a Bohr Model represents an ________________ level.
IONS
19. Complete the following table:
ELEMENT
ION SYMBOL
NUMBER
NUMBER
NUMBER OF
NAME
OF
OF
ELECTRONS
PROTONS
ELECTRONS
LOST OR
GAINED
-
F
Flourine
9
10
gained 1
53
54
16
Gained 2
Potassium
Lost 1
2+
Sr
8
Gained 2
Aluminum
10
3-
N
20. Atoms will gain or lose electrons in order to conform to the _____________ rule. This
means that they strive to be stable like the ___________gases and have ____ valence
electrons.
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