Metals, Metalloids, and Nonmetals

__________is how shiny or reflective a substance is.

• Ductility

• Brittleness

• Luster

• Metal

• Hardness

Match the following elements to their symbols.

• K

• Iron

• Na

• Sodium

• Fe

• Helium

• He

• Potassium

• H

• Hydrogen

____________is the ability of a substance to be drawn out into a wire.

• Conductivity

• Ductility

• Mass

• Luster

Which of these elements is NOT a metal?

• Antimony

• Chromium

• Calcium

• Uranium

Which type of elements are semiconductors?

• Metals

• Metalloids

• Nonmetals

• Gases

(a)   are usually conductors of heat and energy.

_______is the ability to be formed or beaten into a different shape.

• Fluidity

• Meltability

• Malleability

• Ductility

A scientist observes an element that has luster, conducts electricity, and is malleable. This element is a __________.

• metalloid

• nonmetal

• mineral

• metal

A scientist observes an element that is dull, brittle, and does not conduct electricity. This element is a _________.

• nonmetal

• metal

• metalloid

• lanthanide

The element Hydrogen is a ___________.

• metal

• nonmetal

• metalloid

• compound