may 24, 1913 - Bohr model
Description:
In 1913 Niels Bohr came up with the idea that Electrons orbit the nucleus in orbits that have a set size and energy.The energy of the orbit is related to its size. The lowest energy is found in the smallest orbit. Radiation is absorbed or emitted when an electron moves from one orbit to another.Added to timeline:
Date:
may 24, 1913
Now
~ 112 years ago