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16 Cards in this Set

  • Front
  • Back

COMPOUND

A substance made of atoms of two or more different elements that are chemically combined.

MOLECULE

The smallest unit of a substance that keeps all of the physical and chemical properties of that substance.

CHEMICAL BOND

The attractive force that holds atoms or ions together.

CHEMICAL STRUCTURE

The arrangement of atoms in a substance.

BOND LENGTH

The average distance between the nuclei of two bonded atoms.

BOND ANGLE

The angle formed by two bonds to the same atom.

BALL AND STICK MODELS

Atomic models of balls (atoms) and sticks (bonds) that show bond lengths and angles.

SPACE FILING MODELS

Atomic models that show the relative size and volume of the compound.

NETWORK STRUCTURE

Tightly bonded atoms or ions that form a strong, rigid structure with a high melting point.

IONIC BOND

A bond formed by the attraction between oppositely charged ions.

METALLIC BOND

A bond formed by the attraction between positively charged metal ions and the electrons around them.

COVALENT BOND

A bond formed when atoms share one or more pairs of electrons.

POLYATOMIC ION

An ion made of two or more atoms.

STRUCTURAL FORMULA

Chemical symbols are used to represent a compound's structure.

EMPIRICAL FORMULA

The composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio.

MOLECULAR FORMULA

A chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of atoms.