Metals, Nonmetals, and Metalloids (Vocabulary)

Luster How the surface of a substance reflects light. Examples Shiney Dull Metalic Waxy

Malleability ability to be formed or shaped under pressure (e.g., metals hammered or rolled into thin sheets). Examples Flattened penny Aluminum can Tin foil Aluminum foil

Conductivity How well it allows heat or electricity to pass through it.

Ductility Can be stretched into wire without breaking.

Metals Elements which have physical properties such as good conductivity, shiny luster, malleability and ductility.

Nonmetals Elements which have physical properties such as no conductivity (an insulator), dull luster, and brittleness (will break).

Metalloids Elements which can have both properties of metals and nonmetals. Also may be called a semi-conductor.

Density Formula D = mass / volume (i density)

Volume Formula V = L x W x H

Water Displacement A method used to calculate the volume of an irregular shaped object.