Bonding Flashcards
Three types of bonding:
Ionic, covalent or metallic
Ionic bonding occurs in_____
Compounds formed from metals, combined with nonmetals
Covalent bonding occurs_____
In the most nonmetallic elements, and in compounds of nonmetals
Metallic bonding occurs in_______
Metallic elements and alloys
How do I ions stay together in an ionic lattice
The electrostatic attraction between oppositely charged ions
Properties of ionic bonding
High melting points
Conducts when molten/dissolved in water - ions free to move
All are solids at room temperature
Covalent bonding is the electrostatic attraction between
Positive nuclei and shared pair of electrons
Covalent bonding is shown in
Dot and cross diagrams
Metallic bonding is the electrostatic force of attraction between
Positive ions and the sea of delocalised electrons
Properties of metallic compounds
Good conductors - electrons free to move
High, melting point
Properties of covalent bonding
Low, melting point
Poor conductivity
The covalent bonds within the molecules are very strong
But the Intermolecular forces between the molecules are very weak