Periodic Table Review
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The periodic table is divided into Periods(rows) and _____________(columns)
It is arranged in order by increasing __________ ____________.
How many Periods are on the table and which direction do they go?
What do Periods tell us? The number of ____________ __________
How many Groups are on the table and which direction do they go?
What do Groups tell us? The number of ____________ __________
What determines which elements belong in a family or group?
a. Similar properties and the number of valence electrons
b. Reactivity and color
c. Numbers or protons and neutrons
d. Number of energy shells and states of matter
8. List the elements that are included in the noble gases group.
9. Noble gases are
a. highly reactive
b. very unreactive
10. If an element is highly reactive, what does that mean?
11. In the current periodic table, elements in a family or group generally havea. the same number of neutrons in their nuclei
b. the same total number of electrons in their electron clouds
c. the same atomic mass
d. the same number of valence electrons
12. What is the least number of energy levels and atom can have? ______
13. How many electrons can each level hold? 1st________, 2nd_______, 3rd________
14. What term is used for the electrons on the outermost energy level?
15. How many valence electrons do the elements carbon and lead have?
16. Why do they have the same number of valence electrons?
17. What do valence electrons tell us about an elements’ chemical reactivity?
18. Which element would have chemical and physical properties most similar to Sulfur?
a. Oxygen
b. Chlorine
c. Phosphorus
d. Nitrogen
19. Which two elements would have the most similar chemical properties?
a. Sodium and Magnesium
b. Sodium and Potassium
c. Nitrogen and Oxygen
d. Potassium and Calcium
20.
Study the diagram below and answer questions 20-22.
A
B
C
D
20.How many neutrons are in an oxygen atom? _________
21. Letter A represents the:
a. Number of atoms present in oxygen
b. The number of protons in oxygen
c. The number of neutrons in oxygen
d. The number of compounds oxygen is able to form with other elements
22. Letter D represents the :
a. Total number of protons and electrons of oxygen
b. Total number of protons and neutrons of oxygen
c. Total number of neutrons of oxygen
d. Total number of electrons of oxygen
23. How do you find the atomic # for any given element?
24. How do you find the mass # for any given element?
25. What two subatomic particles make up the mass of an atom?
26. An atom has 13 protons, 14 neutrons, and 13 electrons, what is the charge of the atom’s
nucleus?
a. + 13
b. +27
c. -13
d. no charge
27. If I have 10 protons, which element am I?
28. If I have 2 valence electrons, and 3 energy levels, which element am I?
29. Complete the table below:
Atomic
Atomic
symbol
number
Protons
B
Neutrons
Electrons
Mass
Atomic
Number
Mass
6
11
24
31
37
39
89
35
63.5
43
100
Pb
207
102
70
225
Mo
53
81
206
100
159
No
261
Tm
170
106
159
30. List three characteristics of metals(Include where they are located on PT) :
31. List three characteristics of non-metals (Include where they are located on PT):
32. List three characteristics of metalloids ( Include where they are located on PT):
*Study all other notes
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