Do Now (3 min) Based on what we learned yesterday, what does the structure of the periodic table allow us to predict about an element? Use complete sentences.

Do Now Based on what we learned yesterday, what does the structure of the periodic table allow us to predict about an element? The periodic table allows us to predict chemical and physical properties of an element.

11/17/09 Cornell Notes, Customized Periodic Tables The Periodic Table 11/17/09 Cornell Notes, Customized Periodic Tables

The Periodic Table Organized by increasing atomic number Periods: The rows (1 through 7) Groups/Families: The columns (1 through 18)

Label Your Periodic Table! Label the periods and groups of your periodic table handout (2 min) 18 1 1 2 13 14 15 16 17 2 3 4 5 6 7 8 9 10 11 12 3 4 5 6 7

Metals Shiny Solid at room temperature Conduct heat and electricity Malleable and ductile

Alkali Metals Group 1 (except hydrogen) Extremely reactive – found in compounds with other elements Extremely soft (can cut with a knife) Example: sodium (Na) is found in table salt

Alkaline Earth Metals Group 2 elements Highly reactive Softer than most metals except the alkalis Example: Calcium (Ca) is used in muscle contractions

Transition Metals Groups 3-12 Create color in many compounds Can have magnetic properties Example: Iron (Fe) is used in construction because it is strong

Inner Transition Metals Two sets at the bottom of the table Lanthanide Series (top) Actinide Series (bottom) Example: Elements in the Lanthanide series are used as phosphors (emit light when hit with electrons)

Non-Metals Typically gases or dull solids Poor conductors of electricity and heat Very important in living organisms

Halogens Group 17 Highly reactive – bad for living creatures in high doses Examples: chlorine in swimming pools

Noble Gases Group 18 Extremely unreactive Colorless, odorless Example: Neon gas is used to light up neon signs

Metalloids Border between metals and non-metals Have physical and chemical properties of both metals and non-metals Examples: Silicon is used in both computers and prosthetics

Customize Your Periodic Table This is YOUR periodic table to use throughout the year. Make it pretty and make it your own! Select a color and color all the metalloids: B, Si, Ge, As, Sb, Te, Po, At Select a second color and color all the non-metals All the noble gases All the halogens (except for astatine) H, C, N, O, P, S, Se Select a third color and color all the metals (remember – hydrogen is NOT a metal) Label the following groups: Alkali metals Alkaline earth metals Halogens Noble Gases Lanthanide Series Actinide Series