Metals, Nonmetals, Metalloids Worksheet

This worksheet can be used to have students identify elements as metals, nonmetals or metalloids. It also has a section to list physical characteristics of each type of element.

This worksheet is available as a free download in PDF format.
It is also available in Microsoft Word format if you would like to customize the questions.

Worksheet Answers:

Copper - metal
Oxygen - nonmetal
Boron - metalloid
Potassium - metal
Silicon - metalloid
Helium - nonmetal
Aluminum - metal
Hydrogen - nonmetal
Calcium - metal
Polonium - metalloid

Physical Properties - Possible Answers

Metals:

• shiny
• solid at room temperature (except for mercury)
• malleable
• ductile
• high melting points
• high densities
• large atomic radii
• low ionization energies
• low electronegativities
• good electrical conductors
• good thermal conductors

Nonmetals:

• dull non-lustrous appearance
• poor electrical conductors
• poor thermal conductors
• nonductile
• brittle solid form

Metalloids:

• electronegativities between metals and nonmetals
• ionization energies between metals and nonmetals
• reactivity depends on other elements involved in the reactions
• intermediate electrical conductivity (used in semiconductors)
• can have characteristics of both metals and nonmetals

More About
Metals and Nonmetals
Metalloids or Semimetals