EVERYDAY SCIENCE

Detailed explanation-1: -The answer: a. electrons move in set paths around the nucleus of the atom. Bohr’s model of the atom is a simple model that was created by the scientist Niels Bohr.

Detailed explanation-2: -Bohr model was proposed by Niels Bohr in 1915. Quantum model is the modern model of an atom. The key difference between Bohr and quantum model is that Bohr model states that electrons behave as particles whereas quantum model explains that the electron has both particle and wave behavior.

Detailed explanation-3: -Postulates of Bohr’s Model of an Atom In an atom, electrons (negatively charged) revolve around the positively charged nucleus in a definite circular path called orbits or shells. Each orbit or shell has a fixed energy and these circular orbits are known as orbital shells.

Detailed explanation-4: -Bohr Atomic Model : In 1913 Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus.

Detailed explanation-5: -Bohr suggested that the electrons travel around the nucleus in definite paths these paths are located in levels at certain distances from the nucleus . Bohr proposed that no path are located between the levels, but electrons can jump from a path in one level to a path in another level.