6.6A Progress Monitoring

Which of the following is a property of a non-metal?

• Conducts electricity and heats well

• Can be hammered into thin sheets

• Is brittle and can break easily

• Has a shiny, metallic luster

All of the following are properties used to classify elements as metals, non-metals, and metalloids EXCEPT

• texture

• conductivity

• luster

• malleability

Iron (Fe) is classified as a metal while Silicon (Si) is classified as a metalloid. Which physical property do these two elements most likely have in common? They both-

• exist as gases at room temp

• have a metallic shine or luster

• are brittle and shatter easily

• conduct electricity very well

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 shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal?

• Hyrdogen

• Arsenic

• Krypton

• Copper

True or False: This table correctly lists the properties of metals and non-metals

• True

• False

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

• Titanium

• Selenium

• Potassium

• Polonium

The table shows the classification and physical state of four elements. Which element most likely has a shiny luster?

• Cobalt

• Arsenic

• Hydrogen

• Carbon

All of these properties describe metals EXCEPT-

• malleable

• conductor

• brittle

• shiny

Conductivity is a physical property of matter that describes its ability to-

• reflect light from its lustrous surface.

• transfer thermal and electrical energy.

• exist in nature as a solid, liquid, or gas.

• be hammered and rolled into thin sheets.

The table shows the properties of three classifications of elements. What are the best headings for columns A, B, and C?

• (A) Metals, (B) Non-metals, and (C) Metalloids

• (A) Non-metals, (B) Metalloids, and (C) Metals

• (A) Metals, (B) Metalloids, and (C) Non-metals

• A) Non-metals, (B) Metals, and (C) Metalloids