Structure of th...

Positively charged radiation was discovered by?

In a particular set-up, the Rutherford alpha ray scattering experiment using thin gold foil, $$\displaystyle N(\theta )$$ is found to be $$x$$. If a platinum foil of double thickness is used instead, $$\displaystyle N(\theta )$$ would be:

Rutherford's alpha particle scattering experiment established that:

The density of nucleus is about _______ times the density of atom.

The mass of an atom is concentrated inside the ............. of an atom.

In Rutherford's experiment, a thin gold foil was bombarded with alpha particles. If 'Thomson's Plum-Pudding' model of the atom was applicable, then what should have happened?

An atom as a whole is electrically neutral because the number of protons is equal to the number of electrons. Is the given statement true?

The ratio of the energy of photon of $$2000 A^0$$ wavelength to that of $$4000 A^0$$ wavelength is:

Which of the following doesn't have charge?

Statement I : $$\displaystyle ^{ 12 }{ C }\ $$ is an isotope of  $$\displaystyle ^{ 14 }{ C }\ $$.
Statement II: The nuclei of both atoms have the same number of neutrons.