Metalloids and Their Properties

The video explores whether boron is a metal, non-metal, or metalloid. It explains the layout of the periodic table, where metals are on the left, nonmetals on the right, and metalloids in between. Boron is identified as a metalloid, possessing properties of both metals and nonmetals. The video emphasizes the importance of memorizing the metalloids to understand the classification of elements. Dr. B concludes by confirming boron's classification as a metalloid.

Which element is an exception to the trend of metals being on the left side of the periodic table?

• Hydrogen

• Carbon

• Oxygen

• Helium

What is the primary characteristic of metalloids?

• They are all liquids.

• They are all gases.

• They have properties of both metals and non-metals.

• They are non-reactive.

Where is boron located on the periodic table?

• Among the metals

• Among the non-metals

• Among the metalloids

• Among the noble gases

What is the best way to remember the placement of metalloids on the periodic table?

• Memorize the metalloids.

• Memorize the metals.

• Memorize the entire periodic table.

• Memorize the non-metals.

Which of the following is NOT a property of metalloids?

• They are all solid at room temperature.

• They are all non-reactive.

• They can conduct electricity.

• They have properties of both metals and non-metals.

What is the classification of boron on the periodic table?

• Noble gas

• Metalloid

• Non-metal

• Metal