Chemicals – that is what the world is made up of. Be it the beginning of solar system, the birth of planets or the continuous reaction on the brightest star – Sun, laws of chemistry are followed and endured. And the backbone to this vastness of chemistry is the elements, which singly or in a combined form are running this world. To living species, elements are either essential as nutrients or are the ones that harm the body, interfere with the functioning and undermine health – the toxic ones.