Whose postulates account for the line spectrum of an atom?
A)Thomson
B)de Broglie
C)Heisenberg
D)Rutherford
E)Bohr

Question

Quizplus · Accepted Answer

Bohr's postulates, proposed in 1913, account for the line spectrum of an atom. He postulated that electrons move in orbits around the nucleus, and that only certain orbits with specific energies are allowed. When an electron transitions from a higher energy orbit to a lower energy orbit, it emits energy in the form of a photon with a specific wavelength, corresponding to a specific color of light. This explains the observed line spectrum of elements.

Whose Postulates Account for the Line Spectrum of an Atom