Exploring Metals and Nonmetals

What are three common properties of metals?

• Good conductors of heat and electricity, malleable, and ductile.

• Non-malleable and non-ductile

• Poor conductors of heat and electricity

• Brittle and easily breakable

How do nonmetals generally differ from metals in terms of conductivity?

• Nonmetals are excellent conductors of electricity, while metals are poor conductors.

• Both nonmetals and metals have similar conductivity levels.

• Nonmetals conduct electricity better than metals.

• Nonmetals are generally poor conductors of electricity, while metals are good conductors.

Describe the nature of metallic bonding.

• Metallic bonding involves the sharing of electrons between non-metal atoms.

• Metallic bonding occurs only in ionic compounds.

• Metallic bonding is characterized by a sea of delocalized electrons surrounding positively charged metal ions, allowing for conductivity and malleability.

• Metallic bonding is characterized by fixed electrons that do not move freely.

What type of bond is typically formed between nonmetals?

• Ionic bond

• Hydrogen bond

• Covalent bond

• Metallic bond

Which metal is known for its high reactivity with water?

• Gold

• Iron

• Sodium

• Copper

What is a characteristic property of nonmetals in terms of physical state at room temperature?

• Nonmetals are usually gases or solids at room temperature.

• Nonmetals are exclusively found as gases at room temperature.

• Nonmetals are typically metals at room temperature.

• Nonmetals are always liquids at room temperature.

Explain how metallic bonding contributes to the malleability of metals.

• Metallic bonding only occurs in non-metallic elements, not metals.

• Metallic bonding prevents atoms from moving, making metals rigid.

• Metallic bonding makes metals brittle and prone to breaking.

• Metallic bonding allows metal ions to slide past each other due to delocalized electrons, making metals malleable.

What is the trend in reactivity among alkali metals?

• Reactivity increases up the group.

• Reactivity decreases down the group.

• Reactivity increases down the group.

• Reactivity remains constant down the group.

How do nonmetals typically react with metals?

• Nonmetals and metals do not react with each other at all.

• Nonmetals form metallic bonds with metals.

• Nonmetals gain electrons from metals, forming ionic bonds.

• Nonmetals lose electrons to metals, forming covalent bonds.

What role do valence electrons play in the reactivity of metals?

• Valence electrons only influence the color of metals, not their reactivity.

• Valence electrons increase the mass of metals, affecting their reactivity.

• Valence electrons determine the reactivity of metals by influencing their ability to lose electrons and form positive ions.

• Valence electrons are irrelevant to the formation of chemical bonds in metals.