Alkali metals,alkaline earth metals,transition metals and trends

Which alkali metal reacts most vigorously with water?

• Potassium

• Lithium

What is observed when lithium reacts with water?

• Fizzing and floating

• Blue flame appears

Why are alkali metals stored in oil?

• To prevent reaction with air or moisture

• To keep them cold

What is the trend in reactivity down Group 1?

• Increases

• Decreases

Which of the following is the softest metal in Group 1?

• Rubidium

• Lithium

Which group is more reactive with water?

• Group 1 (alkali metals)

• Group 2 (alkaline earth metals)

What is the product when magnesium reacts with oxygen?

• Magnesium oxide

• Magnesium carbonate

Which Group 2 metal reacts with cold water

• Calcium

• Beryllium

What is the flame test color for calcium?

• Brick-red

• Green

10. Which Group 2 metal is used in fireworks for a bright white flame?

• Barium

• Magnesium