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Families of the Periodic Table Webquest answers
Kennesaw State University
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Families of the Periodic Table Webquest Go to chem4kids/files/elem_pertable.html
Why are the elements placed in specific places on the Periodic Table? Based on how they look or act.
Periods are rows__ that run from left___ to right_.
Elements in the same period have the same number of orbitals____________________.
Every element in the first period has 1__ shell for its electrons. Every element in the second period has 2 for its electrons__. See the pattern?
Groups are colums_________ that run from top____ to bottom_____.
The elements of a group have the same number of valence electrons__________ in their _outer__________shell.
Every element in group one has 1___ electron in its outer shell. Every element in group two has 2_____ electrons in its outer shell.
Hydrogen is special because it can act like two groups, 1____ and 7_.
Hydrogen sometimes is missing______________ an electron and sometimes it has an extra_______ electron. 10 helium has only 2__ electrons in its outer shell, it is grouped with elements that have 8______.
The green elements on this table are called transition______ elements. They each have two electrons in their outer shell. Specific Families Use this site to fill in the blanks below: http.//chemicalelements/
Click on Alkali Metals (left bar) and answer the following questions. a. What is the group number? 1__ b. Are these metals reactive? yes____ c. Do these metals occur freely in nature? No__ d. How many electrons are in their outer shell? 1_____ e. What are the three characteristics of ALL metals? ____malleable, ductile, good conductors
f. Are these metals soft or hard? soft____________ g. Name the two most reactive elements in this group? cesium_________ and francium______ h. What happens when they are exposed to water? can explode__________ 13. Click on Alkaline Earth Metals (left bar) and answer these questions. a. What is the group number? 2______ b. Are these metals reactive? yes__ c. Do these metals occur freely in nature? no______ d. How many electrons are in their outer shell? 2_____ (Hint: It’s the same as their oxidation number or group number.) 14. Click on Transition Metals (left bar) and answer these questions. a. How many elements are in this group? _____38 b. What are the group numbers? 3_ through _12 c. What are valence electrons? _____electrons used to combine with other elements
d. Because the valence electrons are present in more than one shell_____ transition metals often exhibit several common oxidation states. e. Name the three elements in this family that produce a magnetic field. iron, cobalt, and nickel. 15. Click on Other Metals (left bar) and answer these questions. a. How many elements are in this group? 7___ b. What are the group numbers? 13_____ through 15__ c. How are these other metals similar to the transition metals? ___ductile and malleable
d. How are these metals different than the transition metals? __don’t have variable oxidation states e. List three physical properties of these other metals. __solid, high density, opaque
f. What are the oxidation numbers for this group? +3, ±4, and -3____________
- Click on Metalloids to answer these questions**.**
c. What is their oxidation number? 0___________ 20. Click on Rare Earth Elements ( Inner Transition) (left bar) and answer these questions. a. On you periodic table, label the Lanthanide and Actinide series with your pencil. b. How many Rare Earth elements are there? 30___________________ c. Define trans-uranium. synthetic- man made_____________________ d. The Rare Earth metals are found in group 3____________and periods 6____________and__7___.
Families of the Periodic Table Webquest answers
University: Kennesaw State University
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