Question

118 electron is moving in Bohr's fourth orbit
los de Broglie wavelength is 2. Then the
circunference of the third orbit​

Answer 1

Explanation:

11th

Chemistry

Structure of Atom

Towards Quantum Mechanical Model of Atom

An electron is moving in Bo...

CHEMISTRY

avatar

Asked on October 15, 2019 by

Jigneesha Kakodkar

An electron is moving in Bohr's fourth orbit. Its de-Broglie wavelength is λ. What is the circumference of the fourth orbit?

MEDIUM

Help best friend

Study later

VIDEO EXPLANATION

ANSWER

An electron is moving in Bohr's fourth orbit. Its de-Broglie wavelength is λ. The circumference of the fourth orbit is

4λ

Note: For nth orbital, the circumference is nλ.

From Bohr's fourth postulate, the angular momentum mur is an integral multiple of

2π

h

mur=n×

2π

h

Circumference =2πr=n×

mu

h

=n×λ

As n=4

Circumference= 4λ