The cation that has the same number of electrons (isoelectronic) as Ne is None of the listed options
O Na
Mg 2-
All of the listed options
O AI 3-

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.