Chemical Bonding

Cesium

________ is the least electronegative element with a value of 0.7.

Fluorine

________ is the most electronegative element with a value of 4.0.

bond moment

The ________ can be represented as a vector.

Molecules

________ and polyatomic ions in which an atom has more than an octet of valence electrons.

Electronegativity

________ gives an estimate of whether a bond is nonpolar covalent, polar covalent or ionic.

Noble gases

________ are very stable having high IE, low (less negative, near zero) EA.

Vector

________: a quantity having both direction & magnitude.

Dipole moment

________: produced by two equal but opposite charges separated by a distance, r.

Lewis Symbol

________: the elements chemical symbol + valence electron "dots.

Covalent bonds

________: atoms share electrons.

Single bond

________: shares one pair of electrons.

Molecules

________ and polyatomic ions in which an atom has fewer than an octet of valence electrons.

Electronegativity

________: ability of an atom, in a molecule, to attract electrons to itself.

Molecules

________ and polyatomic ions containing an odd number of electrons.

Ionic bonds

held together by electrostatic interaction between ions of opposite charge; generally metal + nonmetal

Covalent bonds

sharing of electrons between two atoms; generally nonmetal

Metallic bonds

each atom bonded to several neighbors; electrons move freely which leads to good electrical and thermal conductivity

Lewis Symbol

the elements chemical symbol + valence electron "dots"

Lattice energy

the energy required to completely separate one mole of a solid ionic compound into its gaseous ions

Covalent bonds

atoms share electrons

Single bond

shares one pair of electrons

Double bond

shares two pairs of electrons

Triple bond

shares three pairs of electrons

Bond length

distance between nuclei in a bond

Electronegativity

ability of an atom, in a molecule, to attract electrons to itself

Dipole moment

produced by two equal but opposite charges separated by a distance, r

Vector

a quantity having both direction & magnitude