Prentice Hall Chemistry Chapter 8 Vocabulary, Part 1

Front 1

bond dissociation energy

Back 1

The energy required to break the bond between two covalently bonded atoms; this value is usually expressed in kJ per mol of substance.

Front 2

covalent bond

Back 2

a bond formed by the sharing of electrons between atoms.

Front 3

coordinate covalent bond

Back 3

a covalent bond in which one atom contributes both bonding electrons.

Front 4

double covalent bond

Back 4

a bond in which two atoms share two pairs of electrons

Front 5

molecular compound

Back 5

a compound that is composed of molecules

Front 6

molecular formula

Back 6

a chemical formula of a molecular compound that shows the kinds and numbers of atoms present in a molecule of a compound.

Front 7

molecule

Back 7

a neutral group of atoms joined together by covalent bonds.

Front 8

polyatomic ion

Back 8

a tightly bound group of atoms that behaves as a unit and has a positive or negative charge.

Front 9

resonance structure

Back 9

one of the two or more equally valid electron dot structures of a molecule or polyatomic ion.

Front 10

single covalent bond

Back 10

a bond formed when two atoms share a pair of electrons.

Front 11

structural formula

Back 11

a chemical formula that shows the arrangement of atoms in a molecule or a polyatomic ion; each dash between a pair of atoms indicates a pair of shared electrons.

Front 12

triple covalent bond

Back 12

a covalent bond in which three pairs or electrons are shared by two atoms.

Front 13

unshared pair

Back 13

a pair of valence electrons that is not shared between atoms.