Q2: What is the formula & name for a molecule created by a chlorate ion and aluminum. Write the formula for carbon tetrafluoride. 3. Write the name of N2O4. 4. What causes some molecules to be polar?
Aluminum Chlorate Formula: Al(ClO3)3 1) What is the formula for the molecule is created between a chlorate ion and aluminum. Then write its name. Aluminum Chlorate Formula: Al(ClO3)3
2. Write the formula for carbon tetrafluoride. C F 4
Q2: Write the name of N2O4. Di nitrogen Tetra oxide
Single Covalent Bond Double Covalent Bond
4) What causes some molecules to be polar? Type of atom (size) (some attract e- more) 2. Molecule’s shape
Vocabulary Quiz Tomorrow
Today’s Objective: I can recognize and name metallic bonds.
Project Poker
Metallic Bonding
What are covalent bonds?
Is it ever possible for a polar bond to be ionic? Explain.
Attractions between polar molecules are stronger than nonpolar molecules.
Changes in physical properties: Higher boiling points Dissolves other polar substances
Ionic or Covalent?
Property Ionic Covalent Transfer e- Share e- How made Bond between Metals & Nonmetals Nonmetals Table Position Opposite sides Same sides Dissolve in water Only if polar Yes Consistency Brittle Soft Melting temp High Low State at 20C Solid Any
Assignment! Not quiz 192.168.64.3/login
Metallic Bond
Occurs With Metal Elements Metallic Bonds Occurs With Metal Elements
shared electrons around it Metallic Bond: Attraction between a metal cation and the shared electrons around it
Caused by attraction between moving electrons & positive ions Lattice of metal IONS surrounded by free e- Caused by attraction between moving electrons & positive ions
How does this structure affect the properties of metals? 1. Conduct electricity
Malleability And Ductility
(Bronze) Alloy: 1 or more elements melted together with a metal Makes the metal stronger
Alloy: Atoms cannot slide over each other easily
Bronze: Cu+Sn Brass: Cu+Zn Cast Iron: Fe+C+Si Copper Penny: Cu+Zn Gold Jewelry: Au+Ag+Zn+Ni Stainless steel: Fe+C+Cr+Ni
Stainless Steel: Iron & chromium Doesn’t rust Resists corrosion
Brass: Copper & Zinc * Malleable * Good sound qualities
Bronze: Mostly Copper with Tin added Resists corrosion Lasts a long time
Metallic Bonds
Kahoot Bonding