Because Bohr's model was wrong. As physics progressed it was quickly realized that his model did not fit what was actualy happening so new models were created.
Scientists determined that electrons do not orbit the nucleus like planets. Instead, electrons can be anywhere in a cloud like region around the nucleus
the planetary model
atoms
The Bohr model!
cleveland calvilers
Niels Bohr introduced the notion of electronic orbits.
It added on Niels Bohrs model and his research. And anika's cool :D
Neil Bohrs atomic model is simply called Bohrs model. It states that electrons have a certain amount of energy, so they must follow certain orbits. This is different from the modern atomic model.
The Bohr atomic model is similar to solar system.
For a while, but eventually a new atomic model came out that we still use today.
This scientist was Enrico Fermi.
miss Barbara Greenfield