1 / 14

The Metal – Nonmetal Bond

IONIC BONDING. The Metal – Nonmetal Bond. When a metal and nonmetal come together, a pair of electrons acts as a bond. They each become ions. The Rules:. Metal first, nonmetal second Nonmetal ion becomes ‘ide’ Metal is positve, nonmetal is negative Charges must balance to zero

temple
Download Presentation

The Metal – Nonmetal 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. IONIC BONDING The Metal – Nonmetal Bond

  2. When a metal and nonmetal come together, a pair of electrons acts as a bond. They each become ions.

  3. The Rules: • Metal first, nonmetal second • Nonmetal ion becomes ‘ide’ • Metal is positve, nonmetal is negative • Charges must balance to zero • Formula uses a subscript to balance charges • Example: MgCl2 ; Na2O

  4. Practice:

  5. Answers:

  6. Solutions • When ionic compounds are put in water, they dissove into ions:

  7. Examples: OH-1 = hydroxide NO3-1 = nitrate PO4-3 = phosphate SO4-2 = sulfate They behave just like single atom ions. Polyatomic ions: are groups of atoms bonded together with a charge.

  8. Practice: Use polyatomic ions just like any other ion; But when you have more than one , use parentheses. • barium hydroxide= Ba(OH)2 • strontium nitrate= • lithium phosphate • potassium sulfate • Notice parentheses show multiple ions.

  9. Answers: • barium hydroxide Ba(OH)2 • strontium nitrate Sr(NO3)2 • lithium phosphate Li3PO4 • potassium sulfate K2SO4

  10. Transition metals: Metals that have more than one possible charge: • Cobalt: Co+2, Co+3 • Copper: Cu+, Cu+2 • Iron: Fe+2, Fe+3 • Lead: Pb+2, Pb+4 • When writing the names, always use roman numerals to show the charge.

  11. Examples: • Cobalt (II) Co+2, Cobalt (III) Co+3 • Copper(I), Cu+, or Copper (II), Cu+2 • Iron(II) Fe+2, or iron (III), Fe+3 • Lead(II), Pb+2, or lead (IV), Pb+4 • Each of these behaves completely different than the others!!! Show the numbers!

  12. Practice! Lead (IV) hydroxide Copper (II) nitrate CoPO4 Fe2(SO4)3

  13. Answers: • Lead(IV) hydroxide Pb(OH)4 • Copper(II) nitrate Cu(NO3)2 • Cobalt (III) phosphate CoPO4 • Iron (III) sulfate Fe2(SO4)3

  14. The End!

More Related