Reactions of Metals

Of these alkali (Group 1) metals, which is the most reactive?

• Sodium (Na)

• Potassium (K)

• Rubidium (Rb)

• Caesium (Cs)

Some metals are more reactive that others. Which of these metals is the least reactive?

• Sodium (Na)

• Gold (Au)

• Magnesium (Mg)

• Aluminium (Al)

How are reactive metals found in nature?

• Joined to other elements in compounds (they like to react with other atoms).

• In pure form; they don't react and join to other elements.

Do the Group 1 Alkali metals get more reactive as you go down the group or less reactive?

• More reactive

• Less reactive

How are the Group 1 Alkali metals stored?

• In water

• In air

• In oil (to keep them away from water and air)

• In oxygen

How can caesium and rubidium be stored?

• In water

• In oil

• In glass vials with an inert (unreactive) gas like argon.

• In vacuum sealed glass vials (no other atoms to react with)

When you react magnesium with oxygen (by burning it), what is produced?

• magnesium oxide

• magnesium oxygen

• magnesium oxinate

• magnesium hydroxide

When you react iron with oxygen (by burning it), what is produced?

• iron oxide

• magnesium oxygen

• magnesium oxinate

• magnesium hydroxide

When you react a metal with water e.g. sodium and water, what gas is produced?

• carbon dioxide

• oxygen

• hydrogen

• steam

Which of these gases will re-light a glowing splint?

• hydrogen

• carbon dioxide

• oxygen

• water vapor