A circular path around the nucleus in which an electron moves is proposed as Bohr's orbit.
An orbital is the one electron wave function $(\Psi)$ in an atom.
The existence of Bohr's orbits is supported by hydrogen spectrum.
Atomic orbital is characterised by the quantum numbers $n$ and $l$ only
Show Solution
The Correct Option isD
Solution and Explanation
To identify the incorrect statement, let's evaluate each option carefully.
Statement A: "A circular path around the nucleus in which an electron moves is proposed as Bohr's orbit."
This statement is correct. In Bohr's model of the atom, electrons move in circular orbits at fixed distances from the nucleus.
Statement B: "An orbital is the one electron wave function (\Psi) in an atom."
This statement is correct. An atomic orbital is represented by a wave function \Psi, which describes the probability distribution of an electron in an atom.
Statement C: "The existence of Bohr's orbits is supported by the hydrogen spectrum."
This statement is correct. Bohr's model successfully explains the line spectra of the hydrogen atom.
Statement D: "Atomic orbital is characterised by the quantum numbers n and l only."
This statement is incorrect. An atomic orbital is characterized by three quantum numbers: the principal quantum number n, the azimuthal quantum number l, and the magnetic quantum number m_l. These quantum numbers describe the size, shape, and orientation of the orbital, respectively.
Therefore, the incorrect statement is: "Atomic orbital is characterised by the quantum numbers n and l only."
