2.6 Alkali Metals Quiz SP

Which of the following is not an alkali metal?

• Lithium

• Potassium

• Calcium

• Sodium

What is a common property of alkali metals?

• High density

• Soft with low densities

• Low reactivity

• High melting point

What happens when alkali metals react with water?

• They dissolve in water

• They a metal hydroxide

• They produce hydrogen gas

• They produce metal oxides

Which alkali metal can ignite spontaneously at room temperature?

• Sodium

• Lithium

• Potassium

• Caesium

What type of compounds do metals generally form with non-metals?

• Covalent compounds

• Ionic compounds

• Molecular compounds

• Metallic compounds

What do alkali metals form when they react with chlorine gas?

• Metal peroxide

• Metal chloride salt

• Metal oxide

• Metal hydroxide

What happens when alkali metals react with oxygen?

• They form metal hydroxides

• They dissolve in water

• They produce hydrogen gas

• They form metal oxides

What is the trend in reactivity as you go down the alkali metal group?

• Reactivity increases

• Reactivity becomes unpredictable

• Reactivity remains constant

• Reactivity decreases

What is the main reason for the increased reactivity of alkali metals as you go down the group?

• Decreased number of electrons

• Increased number of electrons

• Increased atomic radius

• Decreased atomic radius