1 / 13

Metallic Bond

Metallic Bond. Chapter 15. Metallic Bonds. Holds metals together by sharing the electrons (sea of electrons) VERY STRONG. Metallic Bonds. How atoms are held together in the solid. Metals hold onto their valence electrons very weakly.

tamarr
Download Presentation

Metallic Bond

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. Metallic Bond Chapter 15

  2. Metallic Bonds • Holds metals together by sharing the electrons (sea of electrons) • VERY STRONG

  3. Metallic Bonds How atoms are held together in the solid. Metals hold onto their valence electrons very weakly. Think of them as positive ions floating in a sea of electrons.

  4. Ionic Bond, A Sea of Electrons Electrons are free to move through the solid. Metals conduct electricity.

  5. Metals are Malleable Hammered into shape (bend). Metals are Ductile Ductile Drawn into wires.

  6. + + + + + + + + + + + + Malleable

  7. + + + + + + + + + + + + Malleable Electrons allow atoms to slide by.

  8. Alloys Solutions made by dissolving metal into other elements- usually metals. Melt them together and cool them. If the atoms of the metals are about the same size, they substitute for each other Called a substitutional alloy

  9. Substitutional alloy Metal B Metal A  + Bronze – Copper and Tin Brass- 60 % Copper 39% Zinc and 1%Tin 18 carat gold- 75% gold, 25%Ag or Cu

  10. Alloys If they are different sizes the small one will fit into the spaces of the larger one Called and interstitial alloy

  11. Interstitial Alloy Metal A Metal B  + Steel – 99% iron 1 % C Cast iron- 96% Iron, 4%C

  12. Alloys Making an alloy is still just a mixture Blend the properties Still held together with metallic bonding Most of the metals we use daily are alloys. Designed for a purpose

More Related