group 1 (oxygen and chlorine)

• How does the reactivity of group one metals change?

  It increases as we move down the group
• What is the reason for the change in reactivity of group one metals?

  It is due to the outer electron
• What are group one metals also known as?

  • Alkaline metals
  • They have one outer electron
• What happens when lithium is exposed to oxygen?

  It reacts rapidly to form lithium oxide
• How does sodium's reaction with oxygen compare to lithium's?

  Sodium reacts more rapidly than lithium
• How does potassium's reaction with oxygen compare to sodium's?

  Potassium reacts more rapidly than sodium
• What happens to lithium's outer electron when it reacts with oxygen?

  It moves to the oxygen atom
• What is the charge of lithium ions after reacting with oxygen?

  They have a positive one charge
• What is the charge of the oxide ion after the reaction?

  It has a negative two charge
• What is the general reaction pattern for group one metals with oxygen?

  They all react similarly due to one outer electron
• What do group one metals react rapidly with besides oxygen?

  Chlorine
• What happens to lithium's outer electron when it reacts with chlorine?

  It moves to the chlorine atom
• What ions are produced when lithium reacts with chlorine?

  One positive lithium ion and one negative chloride ion
• What is the compound formed when lithium reacts with chlorine?

  Lithium chloride
• What is the general trend in reactivity for group one metals with chlorine?

  • They react rapidly with chlorine
  • Similar reaction pattern as with oxygen