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Beschreibung
Karteikarten von halliemmcadams, aktualisiert more than 1 year ago
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Erstellt von halliemmcadams
vor fast 9 Jahre
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| Frage | Antworten |
| Nichrome | -Nickel-Chrome (alloy of nickel and chromium) -It is typically used in wire because it heats without degrading itself. |
| Zinc | -German for Zink |
| Galvanization | Process of applying a protective zinc coating to steel/iron to prevent rusting. Hot dip is the most common method. Steel will be protected by the zinc around it if exposed. |
| Gold | Inactive metal |
| What are the two groups in the inner transition metals? | Lanthanide and Actinide |
| What Is lanthanide? | Paramagnetic |
| What is paramagnetic? | Weakly attracted because of unpaired electrons. |
| Uranium | Energy source for generating electricity in nuclear plants. |
| Describe Boron Family | Possess 3 valence electrons wants to rid 3 electrons to become +3 cation. |
| Boron | -Buraq, Burah, Boraz -Used in pyrotechnics and flares to produce a green color. -Used in control rods because it is a good absorber of neutrons. -Dopes silicon for transistors. |
| What are the post transition metals? | Aluminum, Tin, Lead, Gallium, Indium, Thallium, and Bismuth. |
| What is aluminum used for? | Forms corrosion proof reflecting coating for telescope mirrors. |
| Describe the Carbon group. | Possess 4 valence electrons. They either share or give away 2 or 4 electrons. |
| Where does carbon exist? | In allotropes. |
| Name some things that have lead compounds in them. | Lead bullet, lead glass, and car battery lead plates. |
| Describe metalloids | Semiconductors that will allow limited movement of electrons through their structure. They are used a lot in the computer industry. |
| Describe group 15 | Nitrogen Family Possess 5 valence electrons. They usually want to gain three electrons to become -3 ion. |
| Nitrogen | *Most abundant element on earth |
| What does phosphorus do? | It glows |
| Describe the chalogens | Has 6 valence electrons Wants to gain 2 to become -2, but will share electrons. |
| Oxygen | Most abundant in the earths crust by mass. |
| Oxides | Any element that is combined with oxygen. |
| Sulfides | Any element combined with sulfur |
| What is sulfur also called? | Brimstone |
| What is in pepto-bismol that helps control digestion problems. | Bismuth |
| Describe the halogen group | Have 7 valence electrons Want to gain 1 to become -1 anion Very reactive Will share electrons |
| Fluorine | It is used in a compound called teflon that has many uses as a lubricant and reducer of friction. |
| Chlorine | Used to disinfect swimming pool water. |
| Adhesives | Materials which when applies to the surface of substances cause them to adhere to one another. |
| Cohesion | Forming a united whole |
| Adhesion | stick |
| How do molecules stick to each other. | Intermolecular force. |
| Animal Glue | Made form clippings from the hides, horns and hoofs of animals. |
| How is animal glue commonly sold? | In the form of sheets, flakes, or powder that is combined with water. |
| What is fish glue made from? | The leftover bones and cartilage from the fish. |
| How is fish glue usually sold? | In liquid form It is common used in bookbinders because it is a flexible adhesive. |
| Casein Glue | Manufactured from the casein in skim milk. Then they carefully mix with chemicals. |
| Why is casein glue superior to other types of glue. | It has water resistant qualities that other types of glue don't have. It can be soluble if still wet but not when dried. |
| Chemical Bonding | The valence electrons are the glue for atoms in compounds. |
| Name three things elements have been bound with since creation. | Rocks, crude oil (petroleum), and Gases of the atmosphere. |
| Why are there only millions of compounds and not an infinite number? | Because atoms are selective when combining. |
| What type of bonding takes place between metals and nonmetals.? | Ionic bonding, is a type of chemical bond that involves attraction between oppositely charged ions then they transfer electrons. |
| What type of bonding takes place between nonmetals? | Covalent Bonding, a type of bonding where the electrons are shared. |
| What is the type of bonding between metal atoms? | Metallic Bonding, bonding where there is loose sharing. |
| What is polarity? | The tendency of an object to form 2 localized regions of opposite character. |
| What is the range that you can tell the polarity of a bond? | If the total is 1.7 or greater it is ionic. If the total is less than 1.7 then the bond is covalent. |
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