CHEM 1011 CU Boulder Questions With Complete Solutions

What are the 3 largest components of our atmosphere? correct answer: Nitrogen - 78% Oxygen - 21% Argon - 1% How is the periodic table arranged? correct answer: By how elements bond What row are the Halogens? correct answer: 7A - Second from the right What row are the Noble Gases? correct answer: 8A - Far right What is unique about the Noble Gases? correct answer: They are stable and don't like to bond What row are the Alkali Metals correct answer: 1A - Far left What are some characteristics of metals? correct answer: Shiny, metallic, can be molded into a wire/sheet, conduct electricity, solids (almost everything on the periodic table) What are some characteristics of non-metals? correct answer: Gases or liquids at room temperature, not good at conducting electricity, good insulators What are some characteristics of metalloids? correct answer: Conduct electricity and bond like non metals What is a diatomic molecule? correct answer: A