electrons and bonding

Created by

hannah

Cards (18)

Pi bond (π bond)
A bond formed by the sideways overlap of two p orbitals, containing two electrons and with the electron density concentrated above and below the line joining the nuclei of the bonding atoms.
Polyatomic ion
An ion containing more than one atom.
Sigma bond (σ bond)
A bond formed by the overlap of one orbital from each bonding atom, consisting of two electrons and with the electron density centred around a line directly between the nuclei of the two atoms.
Lone pair
An outer shell pair of electrons that is not involved in chemical bonding
Metallic bonding
The electrostatic attraction between positive metal ions and delocalised electrons
Anion
A negatively charged ion with more electrons than protons
Atomic orbital
A region around the nucleus that can hold up to two electrons, with opposite spins
Binary compound
A compound containing two elements only
Bonded pair
A pair of electrons shared between two atoms to make a covalent bond
Cation
A positively charged ion with fewer electrons than protons
Coordinate bond
A shared pair of electrons in which the bonded pair has been provided by one of the bonding atoms only. Also called a dative covalent bond
Covalent bonding
The strong electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms
Dative covalent bond
A shared pair of electrons in which the bonded pair has been provided by one of the bonding atoms only: also called a coordinate bond
Delocalised electrons
Electrons that are shared between more than two atoms
Electron configuration
A shorthand method for showing how electrons occupy sub-shells in an atom
Giant covalent lattice
A three-dimensional structure of atoms, bonded together by strong covalent bonds
Giant ionic lattice
A three-dimensional structure of oppositely charged ions, bonded together by strong ionic bonds
Giant metallic lattice
A three-dimensional structure of positive ions and delocalised electrons, bonded together by strong metallic bonds