ATOMIC STRUCTURE REVIEW
NAME ________________________
I.
FILL IN THE MISSING INFORMATION IN THE TABLE BELOW.
ELEMENT
ELEMENT ATOMIC #
PROTON #
ELECTRON #
NAME
SYMBOL
1. Hydrogen
1
2.
Ca
3.
F
4. Boron
40
9
5
5. Argon
6.
18
Na
11
7. Silicon
28
8. Carbon
9.
6
Fe
10. Gallium
11.
26
31
Ti
12. Neon
48
10
13. Cadmium
14.
48
Pb
15. Krypton
82
36
16. Strontium
88
17. Gold
Au
18.
Xe
131
19. Chromium
24
20. Francium
21.
87
Rn
86
22. Palladium
23.
106
Ag
47
24. Tungsten
74
25.
Br
26.
As
80
33
27. Zirconium
28.
40
K
19
29. Uranium
30.
MASS #
238
Sn
50
(OVER )
NEUTRON #
II.
Please answer the following review questions based on what you
learned from completing your Chapter 4 Outline.
31. What did Rutherford’s Gold Foil experiment tell us about the modern atom?
32. What part(s) of John Dalton’s atomic theory do not agree with our current model of
the atom?
33. Who determined the mass and the charge of an electron?
34. What are TWO ways that isotopes differ from their stable elements?
35. a) How is mass number calculated?
b) How does the calculation of “mass number” differ from the way average atomic mass
is calculated?