<P> When Geiger and Marsden shot alpha particles at their metal foils , they noticed only a tiny fraction of the alpha particles were deflected by more than 90 ° . Most just flew straight through the foil . This suggested that those tiny spheres of intense positive charge were separated by vast gulfs of empty space . Most particles passed through the empty space and experienced negligible deviation , while a handful struck the nuclei of the atoms and bounced right back . </P>
<P> When Geiger and Marsden shot alpha particles at their metal foils , they noticed only a tiny fraction of the alpha particles were deflected by more than 90 ° . Most just flew straight through the foil . This suggested that those tiny spheres of intense positive charge were separated by vast gulfs of empty space . Most particles passed through the empty space and experienced negligible deviation , while a handful struck the nuclei of the atoms and bounced right back . </P>
who discovered the atom is mostly empty space
who discovered the atom is mostly empty space
Geiger and Marsden
Geiger and Marsden