Metals, Nonmetals, and Metalloids, properties and Classificatio

What are the physical properties of metals?

• Colorful, average conductors of heat and electricity, rigid, average melting and boiling points

• Dull, good insulators of heat and electricity, flexible, low melting and boiling points

• Transparent, poor conductors of heat and electricity, brittle, low melting and boiling points

• Luster, good conductors of heat and electricity, malleable and ductile, high melting and boiling points

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Name one chemical property of nonmetals.

• Tendency to gain electrons

• Shiny appearance

• Tendency to lose electrons

• High thermal conductivity

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How are metalloids classified in the periodic table?

• Based on their properties that are intermediate between metals and nonmetals

• Based on their properties that are similar to gases

• Based on their properties that are similar to nonmetals

• Based on their properties that are similar to liquids

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What is the periodic table classification of metalloids?

• Metalloids are classified as elements that have properties of only metals

• Metalloids are classified as elements that have properties of both metals and nonmetals.

• Metalloids are classified as elements that have properties of only nonmetals

• Metalloids are classified as elements that have no specific properties

Explain the reactivity of metals.

• Metals react by losing electrons to form positive ions.

• Metals do not react with other substances.

• Metals react by releasing protons to form positive ions.

• Metals react by gaining electrons to form negative ions.

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What are some examples of physical properties of metals?

• Color, solubility, reactivity

• Luster, conductivity, malleability, and ductility

• Density, odor, taste

• Transparency, brittleness, volatility

What are the chemical properties of nonmetals?

• Nonmetals are good conductors of heat and electricity

• Nonmetals have properties such as low melting and boiling points, poor conductors of heat and electricity, and tend to gain electrons in chemical reactions.

• Nonmetals tend to lose electrons in chemical reactions

• Nonmetals have high melting and boiling points

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How would you classify Indium?

• Metalloid

• Metal

• non-metal

• A gas

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Where are metalloids located in the periodic table?

• At the top of the periodic table

• In the middle of the nonmetals

• Between metals and nonmetals

• At the bottom of the periodic table

How would you classify Osmium?

• A metal

• A non-metal

• A transitional metal

• A metalloid

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