Sub-Atomic Particles

On the basis of Rutherford’s model of an atom, which sub- atomic particle is present in the nucleus of an atom?

The kinetic energy of a sub-atomic particle is 5.65xx10^(-25)J . Calculate the frequency of the particle wave.

Assuming the velocity to be same , which sub-atomic particle possesses smallest de-Broglie wavelngth :

In the following table the mass number and the atomic number of certain elemnts are given: (a)Select the pair of isobars from the above table. (b) What would be the valency of the element C listed in a neutrl atom? (c ) Which two sub atomic particles are equal in number in a neutral atom?

Calculate the frequency of paritcle wave, when the kinetic energy of a sub-atomic particle is 3.79 xx 10^(-27) J . Hint : KE = (1)/(2) mv^(2) lambda = (h)/(mv) , lambda = ( v)/( v) :. (v)/(v) = (h)/( mv), v= (mv^(2))/( h) = ( 2 xx ( 1)/(2) mv^(2))/( h)

How are the subatomic particles arranged in an atom according to modern structure of the atom

Which subatomic particle is not present in an ordinary hydrogen atom ?