MindMap Gallery Chemical Bonding
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Carbohydrates
Chemistry
synthetic polymers
College Chemistry Teachers
The Chemistry of Life
Autonomic Nervous System (ANS) Drugs
Periodic Table Concepts
Chemistry-Atoms
Molecular Covalent Compunds, Ionic Compounds, Hydrogen Bonds
Fruit Battery
Chemical Bonding
Metallic Bonding
Characteristics
Malleable
Layers of atoms can slide easily over one another
Hardness
Alloys are much harder
Alloys are mixtures of metals
Orderly arrangement disrupted by atoms of another metal
Layers no longer slide over each other easily
Good electrical conductors
Electric current consists of moving electrons
High melting and boiling point
Molecular bonds are strong and hard to break
Metal consists of orderly arrangement of positive metal ions
Electrons free to move about between ions
Surrounded by sea of electrons
Definition
Process where atoms combine to form molecules
Each atom attains octet configuration
Ionic Bonding
Formed between a metal and a non-metal
Metal atoms lose valence electrons
Non-metal atoms gain valence electrons
Loss/gain of electrons
To attain octet configuration
Between cations and anions
Compounds formed
Solid at room temperature
High melting point and boiling point
Strong force of attraction between molecules
Forms positive and negative ions
Conduct electricity when molten or aqueous
Dissociation of compound in solutions allows free movement of electrons
Giant ionic lattice
Electrostatic interaction between positive and negative ions
Usually water soluble
Simple or complex ions
Simple ions
Formed when an atom of an element loses or accepts electrons to form a charged particle
Complex ions
Is a charged particle that consists of more than 1 atom of 1 or more elements
Covalent Bonding
Formed between 2 non-metals
Both atoms need to gain valence atoms
Both atoms share valence electrons instead of trading
Sharing of electrons
"Shared" electrons travel around the nuclei of both atoms
Simple molecular
Often liquid or gas at room temperature
Low melting point and boiling point
Weak intermolecular forces
Exist as neutral molecules (No ions)
Do not conduct electricity when molten or aqueous
Compound remains as same molecule in water and does not allow for free movement of electrons
Can form multiple bonds
Equals to eight minus group number
Tend to be more flammable than ionic compounds
Carbon and Hydrogen have similar electronegativities and are found together in most covalent compounds
Carbon and Hydrogen react to form Carbon Dioxide and water when heated with Oxygen gas
Macromolecular
Strong covalent bonds in structure