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 adalah tempat main game on yang telah mendapatkan sertifikat terbaik dan terpercaya , Unsur138 mempunyai sistem baru yang sangat canggih yaitu sistem service