Bohr’s Model of an Atom: Students get to know the Bohr’s Model of an Atom. Find out what are its limitations and the postulates it is based on.

MR. E. J. EVANS has described recently some interesting experiments on the “4686” and Pickering series, which were obtained from vacuum tubes containing helium from which hydrogen was ...

THE spectra of helium and hydrogen have acquired considerable importance in view of the recent experimental researches of Prof. Fowler and the theoretical investigations of Dr. Bohr. Before the ...