The development of atomic energy was based on the theories of

The correct answer is Sir Ernest Rutherford.

One of the first findings on atomic energy theory was reached in 1911 by Rutherford, who became known as the father of nuclear physics.

He discovered that the mass of the atom was concentrated in its nucleus, and proposed that the nucleus has a positive charge and is surrounded by negatively charged electrons, which had been discovered in 1897 by J. J. Thomson.

His theory was complemented in 1913 by Niels Bohr, who placed the electrons in definite shells or quantum levels.

copernicus finished the first manuscript of his book, "de revolutionibus orbium coelestium" ("on the revolutions of the heavenly spheres") in 1532. in it, copernicus established that the planets orbited the sun rather than the earth. he laid out his model of the solar system and the path of the planets.