Metals, Nonmetals, & Metalloids

Which group of elements is known for having a shiny luster and being good conductors of heat and electricity?

• Metals

• Nonmetals

• Noble gases

• Metalloids

What is the typical appearance of metals?

• Metals usually have a dull appearance and are brittle.

• Metals usually have a shiny appearance and are malleable.

• Metals usually have a rough texture and are non-malleable.

• Metals usually have a transparent appearance and are fragile.

What are the three main categories of elements in the periodic table?

• Metals, Nonmetals, and Metalloids.

• Noble gases, Alkali metals, and Transition metals.

• Halogens, Lanthanides, and Actinides.

• Alkali metals, Alkaline earth metals, and Metalloids.

What is a common property of metals?

• Metals are good insulators of heat and electricity.

• Metals are good conductors of heat and electricity.

• Metals are brittle and break easily.

• Metals are poor conductors of heat and electricity.

What is the general state of nonmetals at room temperature?

• Nonmetals are always gases at room temperature.

• Nonmetals can be gases, liquids, or solids at room temperature.

• Nonmetals are only found as solids at room temperature.

• Nonmetals are always liquids at room temperature.

How do nonmetals typically react with metals?

• Nonmetals tend to gain electrons from metals during chemical reactions.

• Nonmetals tend to lose electrons to metals during chemical reactions.

• Nonmetals do not react with metals at all.

• Nonmetals and metals form covalent bonds without electron transfer.

What is the role of metalloids in technology?

• They are used primarily in the production of plastics.

• They are essential in the production of semiconductors and electronic devices.

• They serve no significant purpose in modern technology.

• They are mainly used for their aesthetic properties in design.

Give an example of a metalloid.

• Silicon (Si)

• Iron (Fe)

• Copper (Cu)

• Aluminum (Al)

What is the significance of the stair-step line on the periodic table?

• It separates metals from nonmetals and indicates the location of metalloids.

• It shows the atomic number of elements.

• It represents the states of matter at room temperature.

• It indicates the reactivity of elements.

What property distinguishes metalloids from metals and nonmetals?

• Metalloids can conduct electricity and heat but are more brittle than metals.

• Metalloids are always solid at room temperature.

• Metalloids have a shiny appearance like metals.

• Metalloids do not conduct electricity at all.