Ch.9 - Bonding & Molecular StructureWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds
Sections
Chemical Bonds
Lattice Energy
Lattice Energy Application
Born Haber Cycle
Dipole Moment
Lewis Dot Structure
Octet Rule
Formal Charge
Resonance Structures
Additional Practice
Bond Energy

Solution: Please Classify each of the following diatomic species as ionic, polar covalent or non polar covalent. 1. O2. CaO 3. Br2 4. HBr 5.LiBr

Problem

Please Classify each of the following diatomic species as ionic, polar covalent or non polar covalent. 

1. O

2. CaO 

3. Br2 

4. HBr 

5.LiBr

Solution

We’re being asked to determine if the compounds are held together by polar/non-polar covalent bond or ionic bond among the given choices. 


covalent bond is formed by the sharing of electrons by two non-metals. 


An ionic bond, on the other hand, is a bond formed between a metal and a non-metal.



Recall that for a covalent bond to be:

• Polar: electronegativity difference must be greater than 0.5

• Non-polar: electronegativity difference must be less than 0.5


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