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Instructions: Go to the websites listed and find the information asked
for.
Part I "Major Players" Go to http://www.wou.edu/las/physci/ch412/perhist.htm
For this site, write the contribution of each person toward the development
of the Periodic Table of Elements.
· Greek Thinkers
· Lavoisier
· John Dalton
· Dobereiner
· De chancourtois
· Cannizaro
· Newlands
· Meyer
· Mendeleyev
· Mosley
· Seaborg
Part II: Get Organized Periodically Go to http://www.chem4kids.com/files/elem_pertable.html
1. Why are the elements placed in specific places on the Periodic Table?
2. Periods are ______ that run from left to right.
3. Elements in the same period have the same _____________________.
4. Every element in the first period has _____ shell for its __________. Every element in the second period
has _____ shells for its __________. See the pattern?
5. Groups are _______ that run from top to bottom.
6. The elements of a group have the same number of _____ in their _____ shell.
7. Every element in group one has _____ electron in its outer shell. Every element in group
two has _____ electrons in its outer shell.
8. Hydrogen is special because it can act like two groups, ______ and _____.
9. Hydrogen sometimes is ________ an electron and sometimes it has an ______ electron.
11. Although helium has only _____ electrons in its
outer shell, it is grouped with elements
that have _____.
12. The gray elements on this table are called __________ elements. They each have two electrons in their outer shell.
Part III: "Family Fun" Go to http://chemicalelements.com/
13. Click on Alkali Metals (left bar) and answer the following questions.
a. What is the group number? ______
b. Are these metals reactive? ______
c. Do these metals occur freely in nature? _____
d. How many electrons are in their outer shell? _____
e. What are the three characteristics of ALL metals? ____________________
___________________________________________________________
f. Are these metals soft or hard? __________
g. Name the two most reactive elements in this group? ________ and ________
h. What happens when they are exposed to water? ____________________
14. Go back and click on Alkaline Earth Metals (left bar) and answer these questions.
a. What is the group number? ______
b. Are these metals reactive? ______
c. Do these metals occur freely in nature? _____
d. How many electrons are in their outer shell? (Hint: it's the same
as their oxidation
number or group number.) ___________
15. Go back and click on Transition Metals (left bar) and answer these questions.
a. How many elements are in this group? ______
b. What are the group numbers? ______ through ______
c. What are valence electrons? _______________________________
d. Because the valence electrons are present in more that one __________
transition metals often exhibit several common ___________________.
e. Name the three elements in this family that produce a magnetic field.
__________, __________, and ___________.
16. Go back and click on Other Metals and answer these questions.
a. How many elements are in this group? ______
b. What are the group numbers? ______ through ______
c. How are these other metals similar to the transition metals? _______________
d. How are these other metals different to the transition metals?_____________
___________________________________________________________
e. List three physical properties of these other metals. ______________________
f. What are the oxidation numbers for this group? __________________________
17. Go back and click on Metalloids to answer these questions.
a. On your periodic table, draw the black stair-step line that distinguishes
metals from nonmetals.
b. Metalloids have properties of both __________ and __________.
c. Define semiconductor. _________________________________________
d. Name two metalloids that are semi-conductors. __________ and __________
e This property makes metalloids useful in __________ and __________.
18. Go back and click on Nonmetals to answer these questions.
a. What are the group numbers? __________ through __________
b. List four characteristics of ALL nonmetals. __________________________
__________________________________________________________
c. What two states of matter do nonmetals exist in at room temperature?
_______ and _______
d. The nonmetals have no _______________ and do not _______________.
e. What are the oxidation numbers of the nonmetals? ______________________
19. Go back and click on Halogens to answer these questions.
a. What is the halogen group number? _____
b. Are halogens metals or nonmetals? __________
c. The term "halogen" means __________ and compounds containing halogens are called ________.
d. How many electrons are in their outer shell? __________
e. What is their oxidation number? __________
f. What states of matter do halogens exist in at room temperature? ___________
20. Go back and click on Noble Gases and answer these questions.
a. What is the group number? _____
b. Why were these gases considered to be inert or stable? _________________
___________________________________________________________
c. What is their oxidation number? _____
21. Go back and click on Rare Earth Elements and answer these questions.
a. On your periodic table, label the Lanthanide and Actinide series with your pencil.
b. How many Rare Earth elements are there? _____
c. Define trans-uranium. __________________________________________
d. The Rare Earth metals are found in group _____ and periods _____
and _____.
Part IV: Pimp my Periodic Table (homework)
In this section you will customize the plain table giving to you by your teacher. Use crayons or colored pencils to do this. You will be scored on meeting the items below and the visual appearance and neatness of your table.
On your own periodic table:
Visit this site: http://chemicalelements.com/show/name.html
Color each elements belonging to each of the following groups:
Non-metals, Alkali Metals, Alkali-Earth Metals, Metalloids, Transition
Metals, Halogens, Noble Gases, Rare-Earth Metals (8 groups total)
Choose a different color for each group. Make a legend below the table
showing colors for each group/family.
ADVANCED: Some
Trends on the Periodic Table
Objective: To discover the periodic trends of certain physical properties
of elements related to their position on the Periodic Table of Elements.
Activity: Use data from Webelements
to answer the following questions.
1. Atomic Radius
Define atomic radius in your own words:
From the line graph of atomic radius and ball size representation of
atomic radius
What do the different colors show?
What appears to be the trend in atomic radius as you move from left to right in a row?
What appears to be the trend in atomic radius as you move from top to bottom in a column?
Is the pattern of atomic radius absolute or general (always true or generally true)?
Why do the fourth and fifth periods have more dots and different patterns?
2. First Ionization Energy
Define first ionization energy in your own words:
From the line graph for 1st ionization energy and shaded periodic table of 1st ionization energies:
What appears to be the trend in ionization energy as you move from left to right in a row?
What appears to be the trend in ionization energy as you move from top to bottom in a column?
Is the pattern in ionization energy absolute or general (always true
or generally true)?
3. Electronegativity
Define electronegativity in your own words:
View the line graph for electronegativity and the shaded periodic table of electronegativities.
What is the most electronegative element?
Where is it found on the periodic table?
Where are the least electronegative elements found?
What appears to be the trend in electronegativity as you move from left to right in a row?
What appears to be the trend in electronegativity as you move from top to bottom in a column?
Is the pattern in electronegativity absolute or general (always true or generally true)?
4. Periodicity
How do these properties show periodicity (periodic trends) of the
chemical elements? That is, as the atomic number increases, when
to the trends repeat?
If you have trouble with the site above use
http://serc.carleton.edu/images/usingdata/nasaimages/periodic-table.gif
http://imagine.gsfc.nasa.gov/docs/features/topics/instrument_design/periodic.gif
:
If you finish early play these videos
http://www.teachertube.com/view_video.php?viewkey=3b7f034269ad747c93a4
If you finish early play these periodic table games:
Periodic Table Games:
The Periodic Table Challenge: http://www.ilpi.com/genchem/periodicquiz.html
Periodic Table History Quiz 1: http://www.1001-periodic-table-quiz-questions.com/quiz/k-12/periodic_history_1.html
Element Bingo: Learn every element's chemical symbol while playing bingo. http://education.jlab.org/beamsactivity/6thgrade/elementbingo/index.html
Element Word Search: http://education.jlab.org/beamsactivity/6thgrade/elementwordsearch/index.html
Periodic Table of Elements: Has an online element flashcard, element hangman, element matching, element concentration games. http://education.jlab.org/beamsactivity/6thgrade/tableofelements/index.html
Chemistry Drill: You will be provided with an element symbol and then
you will be able to answer questions about it. The seven selections are
period, group, atomic number, element name, atomic name, element to the
left, and element to the right. http://www.edu4kids.com/chem/
