Germaniyaliklar bir qator tabiiy elementlarni kashf etishdi, shu jumladan uranium, uni 1789 yilda nemis fizigi Martin Klaprot kashf etdi. 1900 yilda Walkhoff va Giesel radiumni uranning to'rtta tabiiy izotopiga kirganini aniqladilar.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence