Name this element formerly known as quicksilver whose chemical symbol is Hg.
A nitrate of this element is used to create picric [PIK-rik] acid in the Wolffenstein–Böters reaction,   and the previous name used for thiols ["THIGH"-awlz] came about because of their ability to bond  with this element. This is the cause of Minamata disease, and the use of this element to make a   vaccine preservative called Thiomersal ["thigh"-o-MER-sul] is now in decline because of rumored  health effects. Because this element has a high boiling point and a high coefficient of expansion in  addition to being a dense liquid, it has traditionally been used in barometers and thermometers.  Name this element formerly known as quicksilver whose chemical symbol is Hg.
A nitrate of this element is used to create picric [PIK-rik] acid in the Wolffenstein–Böters reaction,   and the previous name used for thiols ["THIGH"-awlz] came about because of their ability to bond  with this element.
mercury [prompt on Hg]