Friday, December 13, 2013

Observation Assignment IV-10 minute quiz


Objectives:
The students will be able to determine trends and patterns of the periodic table.
The students will be able to use the periodic table to explain the structure of electrons in an atom.
Bloom’s Taxonomic Levels:
Application
Analysis


Electrons and Periodic Trends Quiz
Name:_________________                                                                                          Date:_________

For questions 1-5 circle the correct answer (1 point each). For question 6, answer the question in 5-7 sentences in as much detail as possible. Use complete sentences (5 points).

1.     From a vertical perspective, how is the periodic table arranged?
A)   lower atomic number to higher atomic number
B)   the date in which these elements were discovered
C)    similar properties
D)   there is no specific arrangement

2.     From a horizontal perspective, how is the periodic table arranged?
A)   increasing atomic number from left to right
B)   there is no specific arrangement
C)   similar properties
D)   alphabetical order

3.     What is a valence electron?
A)   Electrons that are closest to the nucleus
B)   an electron in the outer shell of an atom that forms covalent bonds with other atoms
C)   electrons that are not able to form bonds with other atoms
D)   random electrons that are stronger than other electrons, in various shells of the atom

4.     How many valence electrons does Oxygen have?
A)   3
B)   0
C)   8
D)   6

5.     What group of elements has a full octet in its natural state?
A)   metal
B)   noble gases
C)   alkali metals
D)   halogens

6. What is the process one would go through when figuring out how many valence electrons an element has? Reference the periodic table in your explanation.

Electrons and Periodic Trends Quiz-Answer Key
Name:_________________                                                                                          Date:_________

For questions 1-5 circle the correct answer (1 point each). For question 6, answer the question in 5-7 sentences in as much detail as possible. Use complete sentences (5 points).

1.     How are the vertical columns of the periodic table arranged?
A)   lower atomic number to higher atomic number
B)   the date in which these elements were discovered
C)    similar properties
D)   there is no specific arrangement

2.     How are the horizontal rows of the periodic table arranged?
A)   increasing atomic number from left to right
B)   there is no specific arrangement
C)   similar properties
D)   alphabetical order

3.     What is a valence electron?
A)   Electrons that are closest to the nucleus
B)   an electron in the outer shell of an atom that forms covalent bonds with other atoms
C)   electrons that are not able to form bonds with other atoms
D)   random electrons that are stronger than other electrons, in various shells of the atom

4.     How many valence electrons does Oxygen have?
A)   3
B)   0
C)   8
D)   6

5.     What group of elements has a full octet in its natural state?
A)   metals
B)   noble gases
C)   alkali metals
D)   halogens

6. What is the process one would go through when figuring out how many valence electrons an element (not transition metals) has? Reference the periodic table in your explanation.
In order to figure out the number of valance electrons an element has one would simply use the periodic table. There are trends and patterns that hold for figuring out how many valance electrons each element has so the periodic table is a great tool in figuring this out. The columns represent the group of elements and there are 18 groups. Group 1 has 1 valance electron. Group 2 has 2 valance electrons. Skipping over transition metals, group 12 has 3 valance electrons while group 13 has 4 valance electrons and so on. Group 18, with the exception of Helium, have 8 valance electrons.

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