a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
elemento metálico moi velenoso que ten tres formas alotrópicas; o arsénico e os compostos de arsénico son utilizados como herbicidas e insecticidas e en varias aliaxes; atopado na arsenopirita, oropimente e rexalgar