The P eriodic Tab le

Alkaline Earth Metals

The alkaline earth metals are in the second group of the periodic table. Some characteristics of alkaline earth metals are:

  • An oxidation number of +2 which makes them very reactive

  • Not found freely in nature

  • Present in the earth's crust but not in their basic form

  • Distributed in rock structure

  • Two electrons in their outer shell

  • High boiling points

  • High melting points

  • Low density

  • Low electron affinity

  • Low electronegativity

  • Silver in color

  • Ductile

  • Malleable

  • React easily with the halogens and water

  • Softer and stronger than most other metals (except the alkali metals)

The alkaline earth metals are:







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