UNSUR138 – UNSUR 138 Tempat Seru Cari Untung Gampang JP

unsur 138The sort of intruing element is Unsur 138, which can be sometimes called element 138. Even if this element does not even exist as the name indicated, its theoreticalDalam video ini kita akan membahas: 138. Data unsur-unsur periode keta sistem periodik sebagai berikut. Urutan unsur