by Daniel R. Barnes, init: 11/03/2005 Warning: This presentation includes lots of copyrighted images for which permission for use was not secured from their owners. If you use or reproduce this presentation, you may be violating local, state, federal, and/or international copyright laws. Enjoy! . . . locate the following on the periodic table and list some of their properties: alkali metals, alkaline earth metals, transition metals, halogens, noble gases, metals, metalloids, and nonmetals. “SWBAT = “Students will be able to” Hydrogen Halogens Alkali Metals Noble Gases Alkaline Earth Metals H Transition Metals Inner Transition Metals For more fun facts on the elements, read pages R6 – R45 in the back of your Prentice Hall Chemistry textbook. Hydrogen Alkali Metals Halogens http://www.youtube.com/watch?v=DFQPnHkQlZM Noble Gases Alkaline Earth Metals H Li Be He Transition Metals F Ne Na Mg Cl Ar K Ca Br Kr Rb Sr Cs Ba I Xe At Rn Fr Ra Inner Transition Metals For more fun facts on the elements, read pages R6 – R45 in the back of your Prentice Hall Chemistry textbook. Hydrogen Halogens Alkali Metals Noble Gases Alkaline Earth Metals H Li Be He Transition Metals F Ne Na Mg Cl Ar K Ca Br Kr Rb Sr Cs Ba Fr Ra Inner Transition Metals I Xe At Rn Hydrogen Halogens Metalloids = Semimetals Alkali Metals Alkaline Earth Metals Noble Gases (These words may mean something slightly different from each other.) H Li Be Na Mg K Ca Rb Sr Cs Ba Fr Ra Inner Transition Metals He Transition Metals B Si Ge As Sb Te F Ne Cl Ar Br Kr I Xe At Rn Q1: What family is found in the far right column of the periodic table? A: the noble gases Q2: Who are the next-door neighbors of the noble gases? A: the halogens Q3: In what column are the alkali metals found? A: column 1, also known as column 1A Q4: Who are the next-door neighbors of the alkali metals? What column are they in? A: The alkaline earth metals are in column 2 = column 2A Q5: What is the name of the elements that occupy columns three through twelve? A: the transition metals Q6: What is the significance of the diagonal “staircase” over on the right side of the periodic table? A: The staircase is the boundary between the metals and the non-metals. Q7: What do you call many of the elements that touch the staircase? A: “metalloids” or “semi-metals” Q8: What elements are considered to be metalloids? A: B, Si, Ge, As, Sb, and Te. (Po & At maybe) Q9: What are the properties of the alkali metals? A: All are soft enough to be cut with a knife. They all react with air, changing color as they oxidize. They all react violently with water, sizzling, catching on fire, and even exploding. Reactivity increases as you go down the column, with Cs being the most reactive. Q10: Compare and contrast the alkali metals and the alkaline earth metals. A: They both react with water, though alkaline earth metals are less reactive. Alkaline earth metals are not as soft as alkali metals. Alkaline earth metals give up 2 e-, whereas alkali metals give up only one e-. Q11: What is the most reactive alkali metal? Where is it found on the periodic table? What is the most reactive halogen? Where on the PT is it found? A: Cesium is the most reactive alkali metal. It’s in the lower left corner. Fluorine is the most reactive halogen. It’s in the upper right corner. Q12: What are the colors and states of matter of the halogens? A: F = clear gas. Cl = yellowish-green gas. Br = orangebrown liquid. I = grey crystals (but makes purple vapors). Q13: Compare and contrast H and He A: H and He are both gases that are less dense than air. H is flammable, but He is totally non-reactive. Q14: Describe the properties of the noble gases. A: They are colorless, odorless, and generally do not combine with other elements to form compounds. In other words, they are not reactive. They are inert. Their density of a nobble gas is directly proportional to its atomic mass. Q15: What does it mean to say that a given element is not found free in nature? A: The element is so reactive that it is always found chemically combined with other elements. It is never found as a pure element. It’s always part of a compound, unless people go to great effort to purify it. CA Chemistry Standard 1c: Students know how to use the periodic table to identify alkali metals, alklaine earth metals and transition metals, trends in ionization energy, electronegativity, and the relative sizes of ions and atoms. CA Chemistry Standard 1b: Students know how to use the periodic table to identify metals, semi-metals, non-metals, and halogens. http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/flash.mhtml