PPT - Unsur 138 PowerPoint Presentation, free download

unsur 138Unsur 138, also known as Eka-Lawrencium, is a synthetic element with the atomic number 138. It was first predicted as part of the actinide series in the 1940s and was officiallyUnsur138 merupakan salah satu tempat penikmat game on mencari cuan dengan cara bermain game on hanya di unsur 138.