<prompt> Mushure megore rimwe chete achipinda hurukuro dzaPlanck, Meitner akazova mubatsiri waPlanck. Mumakore ekutanga akashanda pamwe chete nemakemikari Otto Hahn uye pamwe chete naye akawana ma isotopes matsva. Muna 1909 akapa mapepa maviri pane beta radiation. Iye zvakare, pamwe chete naOtto Hahn, vakawana nekugadzira nzira yekuparadzanisa muviri inozivikanwa se radioactive recoil, umo mwana wechidiki anoburitswa nechisimba kubva kumatrix yake sezvo ichidzoka panguva yekuparara. Mubvunzo: Ndiani akamubatsira akawana ma isotopes matsva?  <response>: Otto Hahn 