atomic structure

Dmitri Mendeleev

Oct 25, 1803

Dmitri's theory Dmitri Mendeleev's theory was arranging the sixty three elements based on atomic mass into a periodic table.

Eugene Goldstein

Oct 25, 1886

In 1886 Eugen Goldstein noted that cathode-ray tubes with a perforated cathode emit a glow from the end of the tube near the cathode.

Henry Moseley

Nov 23, 1887

his contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number. This stemmed from his development of Moseley's law in X-ray spectra.

Ernest Rutherford

Oct 25, 1909

Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment in which he demonstrated that the atom has a tiny, heavy nucleus. Rutherford designed an experiment to use the alpha particles emitted by a radioactive element as probes to the unseen world of atomic structure.

Max Planck

Oct 25, 1918

known as the originator of the quantum theory of energy for which he was awarded the Nobel Prize in 1918. His work contributed significantly to the understanding of atomic and subatomic processes.

Werner Heisenberg

Oct 25, 1925

Werner Heisenberg contributed to the atomic theory by including quantum mechanics, the branch of mechanics, based on quantum theory, used for interpreting the behavior of elementary particles and atoms.

Erwin Schrodinger

Oct 25, 1926

he took the Bohr atom model one step further. Schrödinger used mathematical equations to describe the likelihood of finding an electron in a certain position. This atomic model is known as the quantum mechanical model of the atom.