1 / 5

Lesson 1-2

Lesson 1-2. What are Metals?. I. Metals and Nonmetals A. Metals – 1. conductors of electricity (passes through) 2. conductor of heat (heats easily) 3. malleable (shapeable) 4. ductile (can be made into wire) 5. grouped together on Periodic Table

abdul-gordon
Télécharger la présentation

Lesson 1-2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson 1-2 What are Metals?

  2. I. Metals and Nonmetals A. Metals – 1. conductors of electricity (passes through) 2. conductor of heat (heats easily) 3. malleable (shapeable) 4. ductile (can be made into wire) 5. grouped together on Periodic Table a) left side & middle (except H) 6. use scanning tunneling microscope to see atoms on the surface of metals

  3. B. Nonmetals 1. insulators - not good conductors of electricity 2. not good conductors of heat 3. not malleable - cannot be shaped 4. usually brittle (break), or not solid

  4. C. Alloys 1. metals that are not pure elements 2. made by combining metals together or a metal and a nonmetal 3. have more useful properties than the elements that make them 4. Ex: Tin and Copper together make Bronze – harder, stronger, doesn’t corrode 5. most common in steel alloys: iron a. not very hard b. when carbon is added – much stronger

  5. D. Metalloids 1. have some but not all the characteristics of metals 2. also known as semiconductors (in computers, mp3 players, etc) 3. most common: silicon a. shiny – not as strong as a metal b. breaks when you hit it c. conducts electricity – not as well as other metals – can be controlled

More Related