Transcript: 6th grade science *Insulator Found on the right side of the periodic table *conductor Metals Metals, Metalliods and Nonmetals left side. Have the same properties as both metals and nonmetals *malleable *Brittle Metalloids Are found on the zig zag line *shiny luster *dull luster Misconceptions Nonmetals 1. Students may confuse malleability and ductile with each other. Make up 3/4 of the periodic table and are found on the 2. Describe the similarities and differences of the properties of metals, nonmetals and metalloids. Objectives 1. Classify an element as a metal, nonmetal or metalloid based on its physical properties http://www.youtube.com/watch?v=VtZ6YfsTCYI&feature=related Properties
Transcript: Good electrical conductors and heat conductors. Malleable - can be beaten into thin sheets. Ductile - can be stretched into wire. Possess metallic luster. Opaque as thin sheet. Solid at room temperature Poor conductors of heat and electricity. Brittle - if a solid. Nonductile. Do not possess metallic luster. Transparent as a thin sheet. Solids, liquids or gases at room temperature. Physical Properties Usually have 4-8 electrons in their outer shell. Gain or share valence electrons easily. Form oxides that are acidic. Are good oxidizing agents. Have higher electron negativities Metals Usually have 1-3 electrons in their outer shell. Lose their valence electrons easily. Form oxides that are basic. Are good reducing agents. Have lower electron negativities. Physical Properties Nonmetal DeShaunda Sears Common Assessment Review Chemical Properties Physical Properties Chemical Properties Chemical Properties
Transcript: What are metals? A metal is a solid material either an element, compound, or alloy. They are: • They usually have 1-3 electrons in their outer shell. • Lose their valence electrons easily. • Form oxides that are basic. • Are good reducing agents. Metals are often extracted from the Earth by means of mining Solid at room temperature Metals can be classified as: They are: • Poor conductors of heat and electricity. • Brittle - if a solid. • Nonductile. • Solids, liquids or gases at room temperature. • Usually have 4-8 electrons in their outer shell. • Gain or share valence electrons easily. • Form oxides that are acidic. • Are good oxidizing agents. Noble Metal Ductile - can be streched into wire What are nonmetals? In chemistry, the term base metal is used informally to refer to a metal that oxidizes or corrodes relatively easily. In alchemy, an ancient practice, base metal was a common and inexpensive metal, as opposed to precious metals, mainly gold and silver. There is no rigorous definition of a nonmetal. It is a chemical element which mostly lacks metallic attributes Precious metal In the periodic table, you can see a stair-stepped line starting at Boron (B), , and going all the way down to Polonium (Po), Except for Germanium (Ge) and Antimony (Sb), all the elements to the left of that line can be classified as metals. good conductors of heat and electricity The term "ferrous" is derived from the Latin word meaning "containing iron". This can include pure iron, such as wrought iron, or an alloy such as steel. Ferrous metals are often magnetic, but not exclusively. Base Metal Metals And Nonmetals A precious metal is a rare metallic chemical element of high economic value. malleable- can be beaten into thin sheets good conductors of heat and electricity Ferrous Metal Noble metals are metals that are resistant to corrosion or oxidation, unlike most base metals. They tend to be precious metals, often due to perceived rarity. Examples include gold, platinum, silver and rhodium.
Transcript: Reaction with acid: None Sulfur Color: Copper Luster: Yes Conductivity: Yes Malleability: Yes Reaction To acid: None Metals and Nonmetals Color: Silver Luster: Yes Conductivity:Yes Malleability:Yes (cc) image by nuonsolarteam on Flickr Yes there is always room for chance in the scientific method. Chance is a major contributor to science some discoveries are planned by the scientist some are merely chance. Color: Black Luster: No Conductivity: No Malleability: No Zinc Color: Brown Luster: No Conductivity: Yes Malleability: No Many of the greatest advances in materials science have been made accidentally. In light of this discuss the value of the scientific method versus chance . Is there ever room for chance when strictly adhering to the scientific method? Reaction with acid: Bubbles Reaction to acid: Bubbles Classification: Metal Color: Silver Luster:Yes Conductivity:Yes Malleability:Yes Aluminium Iron Reaction to acid: Bubbles Metals usually are good conductors, malleable, reflective, they en't always reactive with acids where as nonmetals aren't usually good conductors, rarely malleable, don't have luster and are usually reactive with acids. Reaction with acid: Bubbles Conclusion Color:Yellow Luster:No Conductivity: No Malleability: No Copper Classification Metal Coal Classification: Metal By Devin Tynan-Connolly Classification: Nonmetal Classification: Metal Nonmetals
Transcript: Non-Metals include elements such as Oxygen, Fluorine, and Sulfur. Non-Metals also include Metalloids, which share properties of both Metals, and non-metals, such as Arsenic, Silicon, and Germanium. Chemical Properties include the ability to gain or "lose" electrons in a process called "Bonding," have 4-8 electrons on their outer shell, and create Acidic oxidized agents. Non-Metals have higher electronegativities and are good reducing agents. Non-Metals can take on any shape or definition, depending on the temperature, and what element it is. They are brittle if solid, poor conductors, not ductile, and are transparent. Metals consist of elements like Iron, Lead, and Aluminum. Metals usually have 1-2 valence electrons in their outer shells. They react with nonmetals and create basic oxidized agents. They are good conductors and have a low electronegativity. All metals are solid at room temperature, except for Hg. Physical properties include the ability to conduct electricity, Malleable, Ductile, and Opaque like a sheet. Gerald E. Greiner III Hribek 7th 4-9-13 METAL METAL Non-Metals are found on the right side of the periodic table, along with the metalloids. The most reactive and Non-reactive group is called the Noble Gasses, which only react with themselves, and no other element. These elements can be very, very dense, and are grouped together again, by how they react, and act. Metals and Non-metals are located on the Periodic table and have varying electrons, protons, neutrons which put them in groups, and families, depending on how they react with one another, and what they do on their own. Metals are located on the left side of the periodic table, and their most reactive group is called the Alkali Metals. These metals react violently with other elements, and can be very unstable. METAL NONMETAL Metals and Non-Metals NONMETAL
Transcript: The Periodic Table left side of periodic table HIGH melting points HIGH densities conduct heat and electricity usually in solid form (EXCEPT?) MALLEABILITY the ability of metals to be hammered into shapes DUCTILITY ability of metals to be drawn into wires upper right side of periodic table LOWER melting points LOWER densities POOR conductors of heat and electricity dull and brittle can be found as solid, liquid, or gas under standard conditions HALOGENS NONMETALS METALS METALLOIDS Metals, Nonmetals, Metalloids, Halogens
Transcript: objective: Explain the properties and uses of non-metals non metals are useful, often becase of their chemical reactions. Plastics are materials made from chemicals and are not found in nature. They are strong and waterproof, and can be made into any shape by applying heat. Plastics can also be dyed different colours or made to be transparent. Plastic is not magnetic. It is a good electrical insulator as it does not conduct heat or electricity. Plastics are used to make all sorts of things, such as bags, bottles and toys Glass is made by melting sand and other minerals together at very high temperatures. Glass is normally transparent and can be made into many different shapes. Thick glass can be strong, but thin glass will break very easily. Glass is used for objects that need to be transparent such as windows and spectacles. 6.4 Everyday materials and their properties objective: Describe everyday materials and their physical properties 6.3 Comparing metals and nonmetals non metals: objective: Describe everyday materials and their physical propertiesob examples : Metals properties Researching metals uses objective: Explain the properties and uses of metals 6.1 metals Work Experience objective: Distinguish between metals and non-metals Metals metals are very useful materials. Likes: Material properties References Interests Experience Education Skills
Transcript: Metals and Nonmetals photo credit Nasa / Goddard Space Flight Center / Reto Stöckli Discussion Question Zinc is silver, has luster, malleability, conductivity, and reacts with acid Iron is brown and had no luster. I think it would butit was shavings so we couldn't hammer it and couldn't test for conductivity, but it is a metal Metals are shiny(or have luster), can be hammered into sheets or into wires(malleability), can carry electricity or heat through it(conductivity), and reacts with acid. Sulfer is yellow, doesn't have luster, malleability, conductivity, and does not react with acid. Aluminum is silver, has luster, malleability, conductivity, and reacts with acid. Metals Discuss what types of materials are most important to recycle. Debate whether recycling should be made the law nationwide. Is the expense of enforcing such a law justified Nonmetals Conclusion Carbon is black, doesn't have luster, is not malleable, not conductive, doesn't react with acid. Copper is bronze, has luster, malleability, conductivity, and should react with acid but didn't react in the experiment. Nonmetals are dull and not luster, malleable, conductive, and don't react with acid.
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