penguinsaremytoujjxp penguinsaremytoujjxp
  • 05-08-2018
  • Chemistry
contestada

Which of the following groups contains reactive elements that need to gain only one electron to have a full outer energy level?
alkali metals
alkaline earth metals
halogens
noble gases

Respuesta :

reem2314 reem2314
  • 05-08-2018
Alkali metals (group 1A elements)
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