Question

According to De Broglie the electron in n=3 of $L{i}^{++}$ atom will look like

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

According to De Broglie, electrons can only remain in orbits as stationary waves if the circumference of these orbits are integral multiple of $\lambda$
$2\pi r=n\lambda$
This explanation is totally independent of the atomic number of atom used.
Here for n=3, the circumference of the third Bohr orbit must be
$3\left(\lambda \right)$.So, the total circumference will be three times the wavelength of the electron wave.
Which will give the following picture of the orbit