Arsenic - the chemical elements of the periodic table - images and facts. Arsenic: arsenic (as), a chemical element in the nitrogen group (group 15 [va] of the periodic table), existing in both gray and yellow crystalline forms atomic. The chemical element arsenic is classed as a metalloid it has been known since ancient times its discoverer and discovery date are unknown.
Chemical properties despite its notoriety as a deadly poison, arsenic is an essential trace element for some animals, and maybe even for humans.
Get periodic table facts on the chemical and physical properties of the element arsenic.
Arsenic compounds have been known since at least the days of ancient greece and rome (thousands of years ago) they were used by physicians and poisoners.
Questions & answers on arsenic what is arsenic arsenic is a chemical element present in the environment from both natural and human sources, including erosion of arsenic-containing rocks, volcanic eruptions, contamination from mining and smelting ores, and previous or current use of arsenic-containing pesticides. Element arsenic (as), group 15, atomic number 33, p-block, mass 74922 sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images.