Arsenic sits below phosphorus on the periodic table, which means the two elements behave in similar ways in chemical reactions.

BOOK REVIEW: Periodic Tales: A Cultural History of the Elements, from Arsenic to Zinc by Hugh Aldersey-Williams Review by Daniel Strain By Science News July 15, 2011 at 10:24 am - More than 2 ...

Whether discussing arsenic's poisonous past or emerald's color, which "we are biologically programmed to appreciate," Aldersey-Williams puts truth behind the notion "each allocation [element] is a ...

Arsenic is positioned just below phosphorus in the periodic table, and the two elements can play a similar role in chemical reactions.