Transfer Devices (CSTDs) The world's first needlefree closed systems and closed system transfer devices for the safe handling of hazardous drugs. Needlefree system assures compliance with safe handling policies. Easy-to-use system requires no assembly of components. ChemoClave CSTDs generate less biohazardous waste than other CSTDs.
Even though Bohr's model was not entirely correct in its application, the point to grab here is that Rutherford's experiment with gold foil and his discovery of the nucleus had a huge contribution to the development of today's atomic theory(s).
The gold foil experiment demonstrated (according to Rutherford) that most of an atom is empty space (therefore 99.995% non-reflected Î±-particles) with a very small positively charged nucleus in the middle (responsible for deflecting 0.005% of all Î±-particles). Rutherfordâs associates bombarded a very thin (10^(-7) m) gold foil with Î±-particles. Au-nucleus [p^+ =79, n^0 = 118]; Î±-particle [p^+ = 2, n^0 = 2] is He^(2+), positive electric charge The result was 99.995% Î±-particles were not deflected (1 in 20,000 Î±-particles were turned through an average angle of 90 degrees in passing through a layer of gold-foil about 0.00004 cm thick).