group 2 elements : redox reactions

• Physical properties

  • alkaline
  • low density
  • low boiling point
  • malleable
  • shiny
  • dull, reacts quickly with o2
• Electronic configuration Group 2

  • outermost shell has s2
  • very high with water

  Redox properties

  • oxidises in a reaction as it loses 2 electrons
  • reducing agent M -> M2+ + e-
• trend in reactivity + ionisation energy

  • atomic radius increases going down group
  • shielding increases + reduces attraction
  • nuclear charge increases