Structure, Bonding, Properties, Energy Changes Flashcards
What are ionic solids made of?
Metals and non-metals
What particles are found in ionic solids?
Ions (cations and anions)
What are the attractive forces in ionic solids?
Ionic / electrostatic bonds (transfer of electrons between atoms)
What are molecular solids made of?
Non-metals
What particles are found in molecular solids?
Molecules
What are the attractive forces in molecular solids?
Weak Intermolecular forces
What are covalent network solids made of?
Non-metals (diamond, graphite, silicon dioxide)
What particles are found in covalent network solids?
Atoms
What are the attractive forces in covalent network solids?
Covalent bonding (sharing of electrons)
What are metallic solids made of?
Metals
What particles are found in metallic solids?
Cations (positively charged ions) + delocalised electrons
Define metallic bonding
Attraction between loosely held valence electrons and cations (positively charged ions) in sea of delocalised electrons
Define ionic bonding
Electrostatic attraction between oppositely charged ions
Define covalent bonding
Bond in which one or more pairs of electrons are shared by two atoms. It’s intramolecular (between atoms within the molecule)
Define intermolecular bonding
Weak attraction between molecules