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Element Families

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Halogen Family of Elements
The highlighted elements of this periodic table belong to the halogen element family.

The highlighted elements of this periodic table belong to the halogen element family.

Todd Helmenstine
The halogen family is a group of reactive nonmetals.
  • Group 17 or VIIA
  • Halogens
  • 7 valence electrons
  • reactive nonmetals
  • melting points and boiling points increase with increasing atomic number
  • high electron affinities
  • change state as move down the family, with fluorine and chlorine existing as gases at room temperature while bromine in a liquid and iodine is a solid

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