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1.Lewis Dot structure for francium bonded to chlorine:
2. Ionic bonds most commonly form between???
3. Where would you find elements that form cations on the periodic table?
Day 4 2-28
How do we name and represent different substances?
Day 4 2-28
Chemical bonds that result from the electrical attraction between large numbers of cations and anions
Cation – ?
Anion – ?
Ionic bonds – REVIEW
Ionic bonds most commonly form between …?
REVIEW
Ionic bonds are made up of charged pieces (ions) … Ions can be made up of single atoms or groups of atoms bonded together (polyatomic ions)
Binary ionic compound – ionic compound consisting of only 2 elements (monatomic ions)
Naming:
Name the cation and add an ide ending to the anion
Examples:
sodium and chlorine form…
sodium chloride
magnesium and oxygen form…
magnesium oxide
What’s a binary ionic compound?
Binary ionic compound – ionic compound consisting of only 2 elements (monatomic ions)
Bromine bonds with sodium
Cesium bonds with oxygen
Silver bonds with fluorine
Sodium bromide
Cesium oxide
Silver fluoride
Read section 8.1 (pages 222-225) AND answer #s 1-6 on page 225 –due at end of class
Day 4 2-28
Read section 9.1 (pages 264-269) AND answer #s 1-8 on page 269.
Problem… names do not directly indicate ratio of ions…
Answer… empirical formula
Li2O NaCl MgF2
Determining formulas – Crisscross method
Determining formulas – Crisscross method
1. determine charges
2. Take away the +/- and crisscross them to determine subscripts
Determine the empirical formula for an ionic compound containing…
potassium and fluorine
calcium and fluorine
cesium and sulfur
aluminum and oxygen
PERIOD 3 did
this slide
Throwing in the transition metals:
Use roman numerals if more than one charge is possible
Roman numeral = charge, if none use sheet, then same as binary ionic compounds
NAMING:
FORMULAS:
The weird guys…
Throwing in the transition metals:
FeO
Au2S
CuF2
PbS
SbF3
NAMING:Work backwards - the overall charge in a compound must be 0
PERIOD 6 did
this slide
Throwing in the transition metals:
Lead II oxide
Silver bromide
Ferric Chloride
Formulas:
calcium fluoride
cobalt III oxide
cuprous chloride
Formulas:
Rb2S
NiO
CuF
NAMING:
Anion
Electrostatic force
Electronegativity
Nonpolar covalent bond
Stable
Penn State
Binary ionic compound
Chemical bond
Cation
Octet rule
Valence electrons
CaF2 (you say the name)
Homework:
Handout
Formula Compound Name Test Result
H2O
H2O
CuSO4
HCl
C3H7OH
HC2H3O2
C12H22O11
NaCl
Ni(NO3)2
KOH
PERIODS 1 &
5 explain
postlab
Throwing in the transition metals:
FeO
Au2S
CuF2
PbS
SbF3
NAMING:Work backwards - the overall charge in a compound must be 0
Throwing in the transition metals:
Lead II oxide
Silver bromide
Ferric Chloride
Formulas: