Chemical Bonding Flashcards
Intramolecular bond
The bond between atoms within molecules
Valence electrons
The electrons in the outmost energy level of an atom
Valency
The number of electrons gained, lost or shared to complete the outmost energy level
Covalent bond
A bond which occurs between two atoms which share at least one pair of electrons
Pure covalent bond
When the electron pair is shared equally between two atoms, the bond occurs when two atoms are of the same element as each other
Bonding pair
The pair of electrons which are involved in a covalent bond
Electronegativity
Measure of the tendency of an atom to attract a bonding pair of electrons
Lone pairs
Electron pairs in the outmost energy level of an atom that do not take part in the chemical bonding process
Polar covalent bond
When the bonding pair is not shared equally between the two atoms, occurs when the atoms involved have different electronegativity values
Dative covalent bond
When a lone pair of electrons from one atom is shared with another Atom which has an empty orbital in its outmost energy level.
Ionic bond
A transfer of electrons and subsequent electrostatic attraction
Metallic bond
Being between a positive kernel and a sea of delocalized electrons
