Earth surface is composed of metals and non-metallic substances that are visible and invincible in the eye of many people. There are non-toxic and toxic for both human and animals. One of these highly toxic chemical elements are the Be (Beryllium) and Pb (Lead).
Both of these chemical elements are grayish in color when expose to air. Their salt forms are highly toxic but usually taste sweet. They are both can be combined to any other substances. And, it can create another useful product. Thus, these elements play a very important role in industrial, aerospace, and construction materials. Just
Continue reading...