Structure of the Atom

Based on α

Based on α-particle scattering, Rutherford proposed that atoms have a tiny, dense, positively charged nucleus containing most of the atom's mass, with

Bohr proposed that electrons orbit

Bohr proposed that electrons orbit the nucleus in fixed, stable orbits without radiating energy. He introduced quantization of angular momentum (mvr =

Electrons in hydrogen occupy discrete energy

Electrons in hydrogen occupy discrete energy levels given by Eₙ = -13.6/n² eV. When electrons transition between levels, they emit or absorb photons,

Bohr postulated that the angular momentum

Bohr postulated that the angular momentum of an electron in orbit is quantized and given by mvr = nh/2π, where n is a positive integer. This restricts