Group 2 elements- redox

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  • All have hydroxides which are alkaline- reflected in common name- alkaline earth metals

Hydroxide: A hydroxide is a compound of a metal with the hydroxide ion OH (as in many alkalis) or the group -OH.

Physical properties

  • Reasonably high melting & boiling points
  • Light metals with low densities
  • Form colourless compounds

Electronic configuration

  • Highest energy electrons in a s-sub shell
  • 2 electrons more than the electronic configuration of nobel gas
  • Outer shell containing 2 electrons

Reactivity of group 2 elements

  • Reactive metals & strong reducing agents
  • Oxidised in reactions- loses 2 electrons from outer s sub-shell- forms…


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