Forensic toxicology holds a crucial role in criminal investigations. These skilled professionals analyze bodily fluids and tissues to detect the presence of harmful substances. Their expertise may help pinpoint the cause of death, provide insight potential foul play, and ultimately assist law enforcement in resolving complex cases. A forensic toxi

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