UNSUR138

unsur 138Unsur138 adalah tempat main game on yang telah mendapatkan sertifikat terbaik dan terpercaya , Unsur138 mempunyai sistem baru yang sangat canggih yaitu sistem serviceUnsur 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