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Bonding…. Warm up:. Draw the Lewis Dot Structure for: what is the charge ( Oxidation number )? LD Charge C ____ _____ O ____ _____ S ____ _____ B ____ _____. Ionic Bonds and Ionic Compounds.

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Presentation Transcript
warm up
Warm up:
  • Draw the Lewis Dot Structure for:

what is the charge (Oxidation number)?

LD Charge

  • C ____ _____
  • O ____ _____
  • S ____ _____
  • B ____ _____
ionic bonds and ionic compounds
Ionic Bonds and Ionic Compounds
  • Ionic Bonds: the attraction between cations and anions that results from the giving and taking of electrons to meet the octet rule.
  • Reminder: What is the octet rule?

What are IONS??

ionic bonding
Ionic bonding
  • Cation: Positive Ion
  • Anion:Negative Ion
  • Ionic Compound:a compound held together by ionic bonds with a net zero charge.
illustrating an ionic bond
Illustrating an ionic bond
  • Part 1:
  • Give the dot structures for each element.
  • Show the giving/taking of electrons.
  • Keep adding atoms until all have met the octet rule.

Na and Cl

illustrating an ionic bond1
Illustrating an ionic bond
  • Part 2:
  • Summarize the number and charge of each cation and anion

Na+ and Cl-

illustrating an ionic bond2
Illustrating an ionic bond
  • Part 3

Give the resulting chemical formula for the ionic compound.

NaCl

Net charge of 0 (-1)+(1)=

try barium and fluorine
Try Barium and Fluorine
  • Part 1:
  • Part 2:
  • Part 3:
try barium and fluorine1
Try Barium and Fluorine
  • Part 1:

Ba F F

  • Part 2:

Ba2+ F- F-

  • Part 3:

BaF2

NET Charge of 0 2 + (-1) + (-1) =

on your own try
On your own try:
  • Cs and N
  • Ga and Br
  • Sr and P
answers
Answers
  • Cs and N

Cs Cs Cs N

Cs3N

  • Ga and Br

Ga Br Br Br

GaBr3

  • Sr and P

Sr Sr Sr P P

Sr3P2

Cs+

Cs+

N3-

Cs+

Br-

Br-

Ga3+

Br-

Sr2+

P-3

P-3

Sr2+

Sr2+

now try
Now try
  • Fe (II) and Cl
  • Ti (III) and O
slide13

Charge

  • Fe (II) and Cl

FeCl2

  • Ti (III) and O

Ti2O3

Charge