118 Unsur Kimia Lengkap: Contoh, Simbol, & Tabel Periodik

unsur 138Unsur kimia (Jawi: ‏ عنصور كيميا ‎ ‎), biasanya dipanggil unsur, ialah bahan yang tidak dapat dibahagi atau ditukar kepada bahan lain dengan kaedah kimia biasa. ... 138 Uto: 171 Usu 172 UsbUnsur 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