Lanthanum-138 - isotopic data and properties

unsur 138Recently, Unsur 138 is known as a placeholder name for a element which could founder the extended periodic table. The atomic number 138 shows that it can act likeUnsur138 menyajikan game berbasis sains. Pelajari unsur kimia lewat permainan interaktif dan tantangan eksperimen virtual yang menarik.