C3 Structure and bonding Flashcards
Course particles
Dust - 1x10-5 and 2.5x10-6
Conductor
A material which contains charged particles which are free to move to carry electrical or thermal energy
Covalent bond
A shared pair of electrons between two non-metals
Diamond
A giant covalent structure which is made up of carbon atoms which form four covalent bonds with four other carbon atoms
Electrostatic force
The strong forces of attraction between oppositely charged ions
Empirical formula
The smallest whole number ratio of atoms of each element in compound
Fullerenes
Fullerenes are molecules of carbon atoms with hollow shapes. The structure are based on hexagonal rings of carbon atoms but they may also contain rings with 5 or 7 carbon atoms.
Graphene
A single layer of graphite with properties that make it useful in electronics and composites
Graphite
A giant covalent structure which is made up of carbon atoms each of which form three covalent bonds with three other carbon atoms, forming layers of hexagonal rings which no covalent bonds between the layers
Ion
An atom or molecule with an electric charge due to the loss or gain of electrons
Ionic bond
A metal atom loses electrons to form a positively charged ion . An ionic bond is formed between the oppositely charged ions.
Ionic compound
Chemical compound formed of ions held together by strong electrostatic forces
Intermolecular forces
The forces which exist between molecules.
Lattice
A repeating regular arrangement of atoms/ions/molecules. This arrangement occurs in crystal structures.
Metallic bond
The bonds present in metals between the positive and metal ions and negatively charged electrons
