Chapter Four Key Terms Flashcards
Covalent Bond
A bond formed by sharing electrons between atoms.
Molecule
A group of atoms held together by covalent bonds.
Bond Length
The optimum distance between nuclei in a covalent bond.
Molecular Compounds
A compound that consists of atoms joined by covalent bonds to form molecules rather than ions.
Single Bond
A covalent bond formed by sharing one electron pair.
Double Bond
A covalent bond formed by sharing two electron pairs.
Triple Bond
A covalent bond formed by sharing three electron pairs.
Lone pair
A pair of electrons that is not used for bonding.
Coordinate Covalent Bond
The covalent bond that forms when both electrons are donated by the same atom.
Valence shell electron pair repulsion model
A method for predicting molecular shape by noting how many electron charge clouds surround atoms and assuming that the clouds orient as far away from one another as possible.
Regular Tetrahedron
A geometric figure with four identical triangular faces.
Polar covalent bond
A bond in which the electrons are attracted more strongly by one atom than by the other.
Dipole
A difference in charge (+ or -) associated with one end of a covalent bond compared with the other, or one end of a molecule compared with another.
