Standard disclaimer - this is just my experience as an individual. I joined before the wars, and I can't tell you why, and I've stayed for a variety of reasons. But one of the reasons I've stayed in is all the people I served with who stayed in, fighting in those pointless wars.. I'm not a killer, so I couldn't contribute that way.
Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. Arsenic is a metalloid. It can exist in various allotropes, although only the gray form has important use in industry.
Properties of Arsenic. Arsenic has atomic number 33, so it has 33 electrons in the configuration 1s 2 2s 2 2p 6 3s 2 3p 2 3d 10 4s 2 4p 3. The same outer shell s 2 p 3 is shared by N, P, Sb and Bi, the two lighter elements above it in the periodic table, and the two heavier elements below.rsenic by itself likes to form the tetrahedral molecule As 4, in which each As is bound to the other three covalently (by sharing electrons). Phosphorus does exactly the same thing. As 4 is a yellowish gas that condenses to a yellow, waxy solid with density about 2.0 g/cc. The gas has a characteristic garlic-like odor.