1. Periodic Table Middle School Science

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3. The periodic table is a table of chemical elements arranged by atomic number. Periodic Table

4. Each table square includes the atomic number, element symbol, and atomic mass. Label these on the lines below. Elements Protons are positively charged and electrons are negatively charged. This creates a neutral charge for each element. 6 C 12.011

5. Each table square includes the atomic number, element symbol, and atomic mass. Label these on the lines below. Elements Protons are positively charged and electrons are negatively charged. This creates a neutral charge for each element. 6 C 12.011 atomic number element symbol atomic mass

6. Each chemical symbol is made up of one or two letters. As new elements are discovered, the person who discovered the element has the privilege of naming it. Name these chemical symbols. Chemical Symbols F Au He Ca Cl O B Mn S Al Na Cu

7. Each chemical symbol is made up of one or two letters. As new elements are discovered, the person who discovered the element has the privilege of naming it. Name these chemical symbols. Chemical Symbols F Au He Ca Cl O B Mn S Al Na Cu Fluorine Gold Helium Calcium Chlorine Oxygen Boron Manganese Sulfur Aluminum Sodium Copper

8. Cu stands for _____. a. Copper b. Chlorine c. Curium d. Carbon

9. The elements in the periodic table are arranged in vertical columns called groups or families. Elements in a family share chemical properties. Organization: Groups or Families

10. The horizontal rows in the periodic table are called periods. Elements in a period contain very different properties. Organization: Periods

11. Click the table to view a video on the periodic table. The Periodic Table

12. Break into groups and research common properties shared by elements in the following groups or families. Group 1: Group 2: Group 11: Group 12: Group 13: Research Properties

13. Break into groups and research common properties shared by elements in the following groups or families. Group 1: The alkali metals are shiny, soft, silvery, and highly reactive with water vapor and oxygen; form water soluble bases; and are good heat and electricity conductors. Group 2: The alkaline earth metals are shiny, silvery-white, good heat and electricity conductors ; and as compounds, are either insoluble or slightly soluble in water. Group 11: The coinage metals are so named since these are the metals from which coins are made. They are resistant to tarnish, durable, and extremely difficult to counterfeit. Group 12: The group 12 elements are all soft, create a magnetic field that opposes any magnetic field applied to them, and have melting points that are lower than any other transition metal (groups 3-12). Group 13: The boron family is scarce in nature (except aluminum), soft, have a low melting point, and at moderate temperatures are chemically reactive. Research Properties

14. Break into groups and research common properties shared by elements in the following groups or families. Group 14: Group 15: Group 16: Group 17: Group 18: Research Properties

15. Break into groups and research common properties shared by elements in the following groups or families. Group 14: The carbon family elements are relatively unreactive. This group has many different chemical and physical properties. Group 15: The nitrogen family elements are solids at room temperature (except nitrogen), and have 5 valence electrons. Group 16: The oxygen family elements occur both as an element and a compound, and have 6 valence electrons. Group 17: The halogen family elements are nonmetals, reactive, found in the rocks in the Earth’s crust, and have 7 valence electrons. Group 18: The noble gases are nonmetals, gases, and are not reactive. Research Properties

16. You would expect Lithium (Li) and Carbon (C) to share some of the same chemical properties since they are elements in the same period. a.True b.False

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