UNSUR138

unsur 138- Sebanyak 118 unsur kimia telah teridentifikasi, mulai dari Ac yang merupakan Actinium sampai dengan Zirconium dengan simbol Zr.. Dari 118 unsur kimiaUnsur 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 officially