GRAND RAPIDS, MI–Citing the threat posed to their children's safety, a Grand Rapids-area parents group is calling for the removal of arsenic from the periodic table of elements. "Our schoolchildren, some as young as the fourth grade, are being exposed to this deadly element in their science classes," said Tricia Montcalm, president of the Grand Rapids Parents Association. "We insist that this poison be removed from the periodic table and replaced with a safe, non-toxic element." To date, the group has raised over $4,500 for the development of a replacement element, "Nickelodeum," a springy, child-safe play foam with an atomic number of 33.