pernyataan berikut yang benar mengenai atom 138 ba...

unsur 138Unsur 138 is an all-in-one on entertainment platform that combines gaming, live events, and interactive experiences. It’s a hub desned to cater to a wide range of audiences, from casualName of the isotope: Cesium-138; Cs-138 Symbol: 138 Cs or 138 55 Cs Mass number A: 138 (= number of nucleons) Atomic number Z: 55 (= number of protons) Neutrons N: 83 Isotopic