Question

Which of the following was not a contribution by Niels Bohr?Electrons are in orbits. There is a relationship between the outer shell and chemical properties. The charge of an electron. Quantum energy emissions.

Answer 1

Neil Bohr contributed towards science in many ways, but his contributions did not include the charge of an electron. Neil Bohr recognized a relationship between the chemical properties of a substance and the number of valence shell electrons. Moreover, he introduced the atomic model in 1913 and provided the liquid-drop model to explain nuclear fusion.

Answer 2

Answer: The charge of an electron

Explanation:

The charge on electrons was determined by the Robert Millikan and Harvy Fletcher from their experiment named Oil drop experiment.

The charge on the electrons is $-1.602\times 10{-19} Coulombs$

Whereas Neil Bohr in his structure of atom explained that:

• Electrons are moving around the nucleus in a discrete circular paths known as orbits or shells.
• These orbitals or shells have fixed value of energy.
• Emission spectra of hydrogen.