Atoms Test - 39...

Which state of triply ionised Beryllium $$(Be^{+++})$$ has the same orbital radius as that of the ground state of hydrogen ?

If elements with principal quantum number $$n>4$$ were not allowed in nature, the number of possible elements would have been:

 Which of the following is true regarding atoms according to Rutherford's gold foil experiment?

The carrier of electromagnetic interaction is:

The difference between the wavelengths of the Stokes line and Anti-Stokes lines in the Raman spectrum of $$H-Br$$ molecule is $$100\mathring { A } $$. If the wavelength of the Anti-Stokes line is $$5000\mathring { A } $$ the wavelength of the incident radiation is:

Bohr's atom model assumes.

Which of the following statement is true on a scattering of atom according to Rutherfords experiments on the alpha particle ?

The discrete spectral lines of line spectra occur when excitation of electrons takes place in

Which of the following assumptions made by Neils Bohr regarding the hydrogen atom was NOT new and "radical"?

For absorption and emission spectra of atoms which one of the following particle changes energy levels?