The wavelength of the radiation emitted, when in hydrogen atom electron falls from infinity to stationary state 1, would be (Rydberg constant = 1.097×107 m-1)
91 nm
9.1×10-8 nm
406 nm
192 nm
A.
91 nm
What is the name of the remaining part of atom except outer orbit?
Name the particles which determine the mass of an element.
What are α-particles?
What are the fundamental particles present in a neutral atom having atomic number greater than 1?
Do protons and neutrons have identical mass?
When α-particles are sent through a thin metal foil, most of them go straight through the foil. What inference do you draw from it?
What did Rutherford's experiment on scattering of particles show for the first time?
Mock Test Series
