The Periodic Table

Has a dull appearance and is brittle

Elements that show moderate electrical conductivity

Group of elements that form salts

Silvery solids with low densities and low melting points found in Group 1.

A row of elements in the periodic table whose properties change gradually and predictabily

The most active metals are found in the noble gas family

Can be hammered into thin sheets

Can be drawn out into a thin wire

A transition element

Able to be hammered into thin sheets is ______

Series of elements that are sometimes called the rare earths

Silicon and germanium are used in electronics as semiconductors

Groups 3-12 are metals and are called _____ elements

Most of the actinides occur naturally in Earth's crust

______ are good conductors of heat and electricity.

Series of radioactive elements

Lithium and sodium are members of the alkali metal family.

Used for computer chips

Most elements fall into this classification

Helium, argon, and radon are members of the halogen family

The nonmetals are not very important

Bromine and mercury are liquids at room temperature

Elements in Groups 3 through 12 of the periodic table

All transition elements are metals

Another name for Group 2 elements

The element silver is widely used in dentistry

Basis for arranging elements in modern periodic table ____

Elements that show properties of both metals and nonmetals

Can be used as a semiconductor

Elements that are gases or brittle solids and poor conductors of heat and electricity _____

A poor conductor of electricity

Only nonmetal in Group 1

Most chemically inactive group of elements

A period contains elements that have similar properties.

A gas at room temperature