Fun fact : Thomson wanted to prove Dalton's postates and another scientist Lenard found something incorrect in it so Rutherford did this experiment to check whether that scientist is correct or Thomson and Dalton
Conclusion: 1. Most part of the atom is hollow. 2. The positive charge resides in a very small space i.e nucleus 3. There is something very heavy in atom. 4. Electrons revolves in closed circular orbits around the nucleus.
A one ray that straight going by 180 degree will go upto some distance and then it starts loosing its kinetic energy and potential energy becomes maximum ,,a strong repulsive coloumbian force start to act ..the alpha particle travel upto that distance from the nucleus is called its distance of closest approach
In Rutherford scattering experiment scientist Rutherford observed that most of the alpha numeric particles nearly 99.9 percent went straight without suffering any kind of deflection but few of them them got deflected through small angles approx 90° angle 🎉😊
Conclusion: 1.most of the space in the atom is empty 2.There is a hard mass at the centre of the atom called nucleus 3.Nucleus is positively charged because protons in it 4.electrons revolve around the nucleus
Rutherford's assistant made a machine jisse count hota h kitni rays h use lagaya gya ...jisse pata chla ki 20000 chli gyi h but but wapas 1 aa rhi h kyuki reading me 1 dikha rha h ... Btw it's is not in the syllabus 😅😂❤
Skme particles large deflection Some particles small deflection Some partickes repelled deflection 20.000 particles and 12 000 particles have a biggest differnce
For this you would require a radioactive sample or an atom with unstable nucleus or which can undergo radioactive decay , you can find those elements by comparing the atomic number and the number of neutrons in atom or maybe by looking at a periodic table , elements of the F block can do that .......next you have to make sure that the radionuclide undergoes alpha decay , as there are many types of radioactive decays . But the thing is that any country government would not allow civilians to use radioactive samples .
Yes, radium is radioactive. Radium emits alpha particles primarily, but it also emits beta particles and gamma radiation due to its decay chain. However, using radium for alpha scattering experiments is not ideal. Alpha particles from radium decay have relatively low penetration power and can be stopped by a few centimeters of air or a piece of paper. In addition, handling radium poses significant health risks due to its radioactivity and the potential for contamination. For alpha scattering experiments, a safer and more common source is polonium-210, which emits alpha particles but has a much shorter half-life and lower gamma radiation compared to radium. This reduces the potential for long-term environmental and health hazards.
OBSERVATION ALPHA RAY TRAVELS IN STRAIGHT LINE . SOME ALPHA RAYS UNDEGOES DEFLECTION. VERY FEW ALPHA RAYS BOUNCEBACK THEIR ORIGINAL PATH . AACHA LGA TO LIKE KIGYE ☺️
Conclusions ( to understand easily) """''''''''''''''''''''''''''''''''' 1.Most of the space of the atom is empty. 2.The total postive charge of the atom is concentrated in a small volume at the centre of the atom called nucleus. 3. The volume occupied by the nucleus is negligibly small as compared to the total volume of the atom.. Sure, you will get 3 marks in your 11th board exam for this.
