সেপ্টেম্বর 1877-এ যাঁদের জন্ম

English radiochemist and Nobel laureate who, with Ernest Rutherford, explained radioactivity as the transmutation of elements and proved the existence of isotopes

British chemist and physicist who won the 1922 Nobel Prize for his mass spectrograph, which led to the discovery of isotopes in non-radioactive elements and the enunciation of the whole-number rule