COM INC COM* 1. What is each row called in the periodic table? The elements in each row of the periodic table have the.

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1 Last name: First name: Date: Period: Cornell Notes Title: Periodic Table Book Section: Ch 12 I CAN explain how the Periodic Table is an organization of elements based on their physical and chemical properties. COMPLETE: All 4 pages are mostly FINISHED and ACCURATE. QUESTIONS 1. What is each row called in the periodic table? ANSWERS COM INC COM* The elements in each row of the periodic table have the. 2. What is each column called in the periodic table? Each element in a group has the in their outer shell. 3. Example: Ne Name: Number of shells: Number of valence electrons: 4. Explain what happens to the number of valence electrons as you move from LEFT TO RIGHT in the periodic table. 5. What is true about valence electrons of stable elements? (example - noble gases) 6. What happens to how metallic atoms are as you move from left to right on the periodic table? Hint: where are the metals compared to the non-metals? 7. Explain what happens to the number of electron shells as you move DOWN the periodic table? Relate this to how reactive the elements are. 8. Demo: sodium in water Observations:

2 CHECK FOR UNDERSTANDING (#9-11) 9. What properties change as you move ACROSS the periods (rows)? The number of valence electrons as you move from left to right. Elements become metallic as you move from left to right. 10. What properties change as you move DOWN the groups (columns)? As you move down, electron shells are which means greater in the valence electrons. Elements become reactive as you move down a group. 11. What is similar between elements in the same group? (p. 309) Elements in the same group share similar and properties because of their same number of valence electrons. 12. What do you know about metals because of their location on the Periodic Table? (in terms of valence electrons) 13. What do you know about nonmetals because of their location on the Periodic Table? (in terms of valence electrons) 14. What do atoms often do if they do not have full valence shells? Metals tend to electrons, while nonmetals tend to electrons.

3 Use pages to compare metals, non-metals, and metalloids in the chart below Metals Where they are on table Describe their Characteristics. (circle all that apply and state any others) Good heat conductors? Good electricity conductor? Malleable? Ductile? Shiny? Other: 3 example elements Non-Metals Good heat conductors? Good electricity conductor? Malleable? Ductile? Shiny? Other: Metalloids Good heat conductors? Good electricity conductor? Malleable? Ductile? Shiny? Other: SUMMARY: Write at least 3 complete sentences using the FOCUS WORDS below. FOCUS WORDS UNDERLINE THESE IN YOUR PARAGRAPH. Metals Metalloids Non-Metals Across Periodic Table Down Periodic Table Reactive Valence Electrons.

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5 ***DO NOT WRITE ON THIS PAPER*** On the Periodic Table in your notes packet (p.4): 1. Color and label: (use pp ) Color lightly so you can still see the info! a. Hydrogen YELLOW b. Alkali Metals RED c. Alkaline Earth Metals PURPLE d. Transition Metals & Rare Earth Elements GREEN e. Metalloids LIGHT BLUE f. Nonmetals (except Halogens and Noble Gases) BLUE g. Halogens GREY h. Noble Gases ORANGE i. Other metals - PINK 2. Write the Period #s for each ROW. This helps you tell how many electron shells an element has. (use pp ) 3. Write the Group #s for each COLUMN. This helps you tell how many valence electrons an element has (remember to subtract 10 for groups 13-18). (use pp ) 4. Draw arrows on your periodic table to show the following patterns: (use #9-10 in notes) a. Valence electrons increasing b. Electron shells added c. Elements becoming more reactive d. Elements more metallic

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