1 / 8

Lead

Lead. Andrew S. Introduction. Lead: Is a bluish-white, shiny metal Stains to dull gray when it is exposed to air Is extremely soft Is a poor electricity conductor Is capable of being shaped and molded Is an increasing poison Does not corrode. Lead. Symbol: Pb Atomic Number: 82

bette
Download Presentation

Lead

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. Lead Andrew S.

  2. Introduction Lead: • Is a bluish-white, shiny metal • Stains to dull gray when it is exposed to air • Is extremely soft • Is a poor electricity conductor • Is capable of being shaped and molded • Is an increasing poison • Does not corrode

  3. Lead Symbol: Pb Atomic Number: 82 Atomic Weight: 207.2 Element Group: Metal Melting Point: 600.65 °K/327.5 °C Boiling Point: 2013 °K/1739.85 °C Discovery: Known to the ancient world at least 7000 years ago Discoverer: Unknown

  4. Effects on Animals • Poisoned birds can lose ability to walk or fly, and can experience sever weight loss and eventually die • It affects the animal’s central nervous system • It stops their ability to produce red blood cells

  5. Effects on The Environment Plants: • Lead pollution covers the surface of the leaves making it less available to the light • The plant eventually dies because of the lack of light and the reduced rate of photosynthesis Micro-organisms: • Lead can wipe out millions of bacteria and fungi on leaves and in the soil

  6. Uses of Lead Lead is used for: • X Radiation shields • Sound and Vibration Absorber • Batteries

  7. Interesting Facts • Lead dust is invisible and it is so tiny that it passes through masks and filters • Lead poisoning causes learning and developmental disabilities • Children who look healthy can have high amounts of lead in their blood

  8. Works Cited Anne, Marie Helmenstine. “Lead.” Chemical & Physical Properties. 22 April 2010 <http://chemistry.about.com/od/elementfacts/a/lead.htm> Greene, Demi. “Effects of lead on the environment.” LEAD Action News. 25 April 2010 <http://www.lead.org.au/lanv1n2/lanv1n2-8.html> “Lead Facts.” Substance Fact Sheets. 25 April 2010 <http://www.dhss.mo.gov/hsees/lead.html> “Lead Facts.” The Basics About Lead Paint. 25 April 2010 <http://www.leadpro.com/facts/html> “Lead Fishing.” Anglers and Aquatic Resource Protection. 25 April 2010 <http://www.epa.gov/owow/fish/animals.html>

More Related