IB Chemistry Sub-topic S2.2 Definitions
Two molecules bound together by a dative bond
A crystalline form of a compound
A covalent bond formed when a single atom donates a shared pair of electrons. Also called dative covalent bond
The electrostatic attraction of two nuclei to a shared pair of electrons
The attraction between oppositely charged dipoles of two polar molecules
The number of bonding and non-bonding pairs of electrons
Relative measure of the attraction an atom has for a shared pair of electrons when covalently bonded to another atom
A dipole-dipole force that occurs between compounds with a hydrogen atom, and a lone pair present on one of nitrogen, oxygen, or fluorine
A dipole created by having a high concentration of electrons in a certain area at any point in time. Found in London dispersion forces
The forces between molecules
A visual representation of covalent compounds, showing all valence electrons as dots, lines or Xs
A bond formed when there is an electronegativity difference of <0.5, leading to no poles being formed
A bond formed when there is an electronegativity difference of 0.5-1.8, leading to one atom pulling electrons more towards itself to create a negative pole on its side and a positive pole on the other atom
A molecule that has more than one correct lewis structure
The directional sum of polarity when a molecule has multiple polar bonds
Outermost energy level of an atom
Valence shell electron pair repulsion theory. Allows us to determine the correct 3D shape of a covalent compound