Which statement about niels bohr’s atomic model is true?
a) higher orbits have lower energies
b) each orbit has a specific energy level
c) electrons can exist in any energy level
d) orbits close to the nucleus have no energy

Option (B) is the correct answer.

Explanation:

According to Neil Bohr, mass of an atom is concentrated on the nucleus as it contains protons and neutrons whereas an electron revolves around the nucleus of the atom. He also said that the electrons reside in orbitals with different energy state.

And normally the energy level occupied by an electron is its ground state.

For example, electronic configuration of hydrogen atomis , that is, electron is present in 1s energy sub-shell.

Thus, we can conclude that the statement about Niels Bohr’s atomic model , that each orbit has a specific energy level, is true.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.