What was the contribution of Neil Bohr in the development of Chemistry?
Neil Bohr is known for its two major contribution to chemistry.
1)Bohr Model of an atom
2)Radiation emitted from an atom.
The Bohr model:
Neils Bohr created the Bohr model of the atom in 1913. The model shows an atom as a positively charged nucleus surrounded by electrons. The electrons orbit the nucleus in a circular pattern.The orbit are stationary having fixed energy. The electrostatic forces of positive and negative provide the attraction of the nucleus and the electrons.The “Bohr Model” as it came be to known, incorporated the new ideas of quantum theory, and was the first step in chemistry’s progression from an exclusively experiment-based science to a theoretical science.
Work on radiation:
Neils Bohrs study of the atom led him to believe that radiation was emitted from atoms due to electrons jumping from one orbit to another. As the electrons moved to another orbit they would lose energy that was emitted as radiation. His calculations demonstrated that the amount of energy an electron can have must always be an integer multiple of “h” (Planck’s constant), which means that only values of 1h, 2h, 3h, etc. are acceptable. When he ran the numbers, he discovered that this perfectly explained spectral series.