C4 Checkpoint

Alkali metals are found in which group of the periodic table?

• Group 1
• Group 2
• Group 7
• group 8 

Which of the following is the most reactive in water?

• Lithium
• Sodium
• Potassium

What is formed when sodium reacts with water?

• sodium oxide and hydrogen
• sodium hydroxide and hydrogen
• sodium hydroxide and oxygen
• sodium hydroxide and carbon dioxide

What is the symbol equation for the reaction between sodium hydroxide and water?

• 2Na + 2H₂O → 2NaOH + H₂
• Na + H₂O → NaOH + H
• Na + H₂0 → NaCl + CO₂
• 2Na + 2H₂O → 2NaH₂ + O₂

Which of the following is NOT an alkali metal

• Li
• Cl
• K
• Cs

When an alkali metal reacts with water, the hydroxide produced dissolves to form and alkaline solution, True or False?

• True
• False

How many electrons do the alkali metals have in their outer shell?

• 1

• 2

• 8

• 7

Which alkali metal has the symbol Cs

• Caesium

• Ceasium

• Calcium

• Sodium

How does a group 1 metal atom form an ion?

• lose 1 electron

• lose 2 electrons

• gain 1 electron

• gain 2 electrons

The least reactive alkali metal is ..........

• Ceasium
• Potassium
• Lithium
• Rubidium