In today's rapidly evolving technological landscape, cultivating STEM proficiency is paramount to ensuring a future-ready workforce. As sectors continue to embrace automation and innovation, the demand for skilled individuals with expertise in science, technology, engineering, and mathematics is surging. To prosper in this dynamic environment, educ

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 traits could be grouped together as a triad, forming the basis for his famous c