Question

what is bohr's model​

Answer 1

Niels Bohr, a Danish scientist, explained this line spectrum while developing a model for the atom: The Bohr model shows that the electrons in atoms are in orbits of differing energy around the nucleus (think of planets orbiting around the sun). ... The energy level an electron normally occupies is called its ground state.

Answer 2

In atomic physics, the Rutherford–Bohr model or Bohr model or Bohr diagram, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting your answer ok