Discovery of Subatomic particles

Introduction|What Are Charges?|Discovery Of Sub-Atomic Particles|Discovery Of Electron

The kinetic energy of a subatomic particle is 5.85 xx 10^(-25) J . Calculate the frequency of the particle wave.

The number of which subatomic particle is same in case of chlorine atom and chloride ion?

A: K.E of two subatomic particles having same De - Broglie 's wavelength is same R : de - Broglie 's wavelength is directly related to mass of subatomic particles

Assertion : According to de Broglie, the wavelengths associated with electrons and other subatomic particles can be detected experimentally. Reason : The wavelength associated with any material particle is directly proportional to its mass,

Rutherford's alpha particle scattering experiment was responsible for the discovery of (a) Atomic Nucleus , (b) Electron ,(c ) Proton ,(d) Neutron.