Mercury Element Mass. Atomic mass of mercury is 200.59 u. The elements whose atomic masses are written in bracket ( ) are the synthetic elements and their atomic masses values represent the atomic mass of the most stable isotope.
Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. Mercury is an exceedingly uncommon element in the earth’s crust, with an average crustal abundance by mass of about 0.08 parts per million (ppm).