group 2 (alkaline metals)

    Cards (21)

    • What happens to atomic radius as you move down a group?
      Atomic radius increases
    • Why does atomic radius increase down a group?
      Due to more electron shells
    • How does attraction change as atomic radius increases?
      Attraction becomes weaker
    • What trend occurs in first ionisation energy down a group?
      First ionisation energy decreases
    • What causes the decrease in first ionisation energy down a group?
      Increased shielding and weaker attraction
    • Why is it easier to remove an electron down a group?
      Due to weaker attraction
    • What happens to electronegativity as you move down a group?
      Electronegativity decreases
    • What is a reason for the decrease in electronegativity down a group?
      Larger atomic radius leads to weaker attraction
    • How does metallic bonding change as atomic size increases?
      Metallic bonding weakens
    • What is the exception to the trend in melting points down the group?
      Magnesium is the exception
    • What happens to density as you move down a group?
      Density increases
    • What causes the increase in density down a group?
      Larger atomic mass and larger volume
    • How do reactions with water change down the group?
      Reactions become more volatile
    • What type of reactions occur with water down the group?
      Redox reactions
    • What is the product of magnesium reacting with water?
      Magnesium hydroxide
    • What is the role of magnesium hydroxide in the body?
      It neutralizes excess stomach acid
    • What oxidation states do elements change from down the group?
      From 0 to 2+
    • How does the solubility of hydroxides change down the group?
      Solubility of hydroxides increases
    • What trend occurs with the solubility of sulfates down the group?
      Solubility of sulfates decreases
    • What is the solubility of barium sulfate?
      Barium sulfate is insoluble
    • What is a common use of barium sulfate in medicine?
      Used in medical testing