Which of the following is an ion with a correct charge ?

O 4-
Ne8+
Ca2+
Na1-

Ca2+ is an ion with a correct charge.

- "the acute form of diverticulitis can manifest itself with one or more severe attacks of infection and inflammation.

the inflammation of diverticulitis can eventually result in a bowel obstruction, which may cause constipation, thin stools, diarrhea, abdominal swelling or bloating, and abdominal pain."