Unit 3 Retake PS.4.b

Front

What is a metalloid?

Back

A class of elements that have properties of both metals and nonmetals, often used in semiconductors.

Front

How many atoms are in ethanol (C₂H₅OH)?

Back

Ethanol contains a total of 9 atoms.

Front

What are the characteristics of metals?

Back

Metals are shiny, malleable, ductile, and good conductors of heat and electricity.

Front

What is the chemical formula for baking soda?

Back

The chemical formula for baking soda is NaHCO₃.

Front

How many different types of atoms are in baking soda (NaHCO₃)?

Back

Baking soda contains 4 different types of atoms: Sodium (Na), Hydrogen (H), Carbon (C), and Oxygen (O).

Front

What is a semiconductor?

Back

A material that has electrical conductivity between that of a conductor and an insulator, often used in electronic devices.

Front

What are nonmetals?

Back

Elements that lack most of the properties of metals, often poor conductors of heat and electricity.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are the properties of nonmetals?

Back

Nonmetals are typically dull, brittle, and poor conductors of heat and electricity.

Front

What is the difference between metals and metalloids?

Back

Metals are good conductors and have metallic luster, while metalloids have mixed properties of metals and nonmetals.