Indonesian Arsen Cited by user Wiz Qyurei on 14 Jul 2023 Arsen, arsenik, atau arsenikum adalah sebuah unsur kimia dengan lambang As dan nomor atom 33.
English Arsenic Cited by user 2601:403:1:D7E1:59B4:E0A8:44E:EE8C on 02 Jan 2017 Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure…