Given below are two statements:
Statement $I$: Atoms are electrically neutral as they contain equal number of positive and negative charges.
Statement $II$: Atoms of each element are stable and emit their characteristic spectrum.
In the light of the above statements, choose the most appropriate answer from the options given below.
Both Statement $I$ and Statement $II$ are incorrect
Statement I is correct but Statement $II$ is incorrect
Statement $I$ is incorrect but Statement $II$ is correct
Both Statement I and Statement $II$ are correct
Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is
What does it mean if the $\alpha -$ particle passes through the foil of gold ?
What was the thickness of the gold foil kept in the Geiger-Marsden scattering experiment?
As an electron makes a transition from an excited state to the ground state of a hydrogen - like atom/ion
An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius $r$. The Coulomb force $\vec{F}$ between the two is