Properties of Metals, Metalloids, and Non-Metals

Which element is a metalloid?

• Titanium
• Selenium
• Potassium
• Polonium

A student is given a sample of an unknown substance. He is asked to determine if it is classified as a metal, a metalloid, or a nonmetal. He discovered that the unknown element conducted some heat and electricity, had a shiny luster, and broke easily. This element is most likely a 

• metal
• nonmetal
• metalloid
• cannot be determined

Which table below correctly lists the properties of metals and nonmetals? *

• A
• B
• C
• D

A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal? 

• Hydrogen
• Arsenic
• Krypton
• Copper

The word “luster” refers to which property of matter?

• The ability to conduct electrical or thermal energy
• Capable of being drawn out into thin wires
• The way a surface appears when it reflects light
• Suitable for being shaped by beating or rolling

The table shows the properties of four elements. Which element in the table is classified as a metal?

• Manganese
• Sulfur
• Silicon
• Neon

Fluorine is used in many tooth pastes because it helps maintain healthy teeth.  At room temperature it is gaseous, and does not conduct electricity. Based off these properties, it would be classified as?

• A metal
• A non metal
• A metalloid

Some metals have the ability to be hammered or rolled into thin sheets. What is this property called?

• Ductile

• Malleable

• Conductor

• Luster

Metals, which are solid at room temperature (with the exception of mercury), also allow heat and electricity to pass through them easily. What is this property called?

• Ductile

• Malleable

• Luster

• Conductive

Which group is found along the stair step line on the Periodic Table and has properties of both metals and non-metals?

• Metals

• Non-Metals

• Transition Metals

• Metalloids