Distance of closest approach of alpha particles towards nucleus ? #structureofatomclass11

Distance of closest approach of alpha particles towards nucleus ? #structureofatomclass11

In Rutherford's famous gold foil experiment, alpha particles were directed at a thin gold foil. Most of the alpha particles passed straight through the foil, but some were deflected at various angles, and a few even bounced back. This unexpected observation led to the conclusion that the atom's positive charge and most of its mass are concentrated in a small, dense nucleus at the center.

The distance of closest approach of an alpha particle to the nucleus can be determined by considering the repulsive electrostatic forces between the positively charged alpha particle and the positively charged nucleus. As the alpha particle approaches the nucleus, the electrostatic repulsion increases, slowing down the alpha particle's speed and causing it to change direction.

The actual distance of closest approach depends on various factors, including the energy of the alpha particle, the charge and mass of the nucleus, and the impact parameter (the distance of closest approach from the nucleus). This distance can be calculated using principles from classical mechanics and Coulomb's law.

However, it's important to note that the exact calculation can be complex and depends on specific experimental conditions. If you're studying this topic in a class, I would recommend referring to your textbook or course materials for detailed explanations and calculations.

Rutherford scattering
Atomic structure
Alpha particle
Nucleus
Gold foil experiment
Coulomb's law
Distance of closest approach
Scattering experiments
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#RutherfordScattering, #AtomicStructure, #AlphaParticle, #Nucleus, #GoldFoilExperiment, #CoulombsLaw, #DistanceOfClosestApproach, #ScatteringExperiments