Leg Weakness â Causes and Treatment. Leg weakness is a serious symptom which is commonly ignored by many people. Leg weakness is highly based on ones own perception, so many people may not even realize that they have leg weakness. However, for practical purposes it is the first sign of paralysis because of nerve compression in the lower back. Leg weakness is frequently accompanied by loss of touch sensation and shooting pain, which generally come before the leg weakness.
Description: Arsenic's name comes from the Greek term for an arsenic compound, orpiment (arsenic trisulfide). Arsenic is a metalloid element, which, like phosphorus, has two main forms. One is a brittle, gray metallic form and the other is a yellow, non-metallic solid.Yellow arsenic is the more reactive and unstable of the pair. Arsenic is stable, being unaffected by air, water, most acids and alkalis.Arsenic has no liquid phase; the solid sublimes directly into a vapor.rsenic has semiconductor properties and is used in making transistors. It is also used in alloys, glass production, pyrotechnics and wood preservatives. An arsenic-gallium compound is used in making lasers.
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.