Forensic toxicology represents a crucial role in criminal investigations. These skilled professionals scrutinize bodily fluids and tissues to detect the presence of harmful substances. Their expertise frequently help pinpoint the cause of death, shed light potential foul play, and ultimately support law enforcement in resolving complex cases. A fo

Before modern classification systems, scientists struggled to the known elements. One early attempt was made by Johann Wolfgang Döbereiner, a German chemist who recognized a striking pattern among certain groups of elements. He proposed that three elements with similar properties could be grouped together as a triad, forming the basis for his famo