Question

The radius of the 4th orbit of the electron will be smaller than its 8th orbit by a factor of.?​

Answer 1

Answer:

What will be the radius of the third orbit, if the radius of the first orbit of an electron is r in Bohr's model of hydrogen atom?

Dreaming of being an IITian? Make it a reality on Unacademy.

The Simplest Formula For Finding the radius of those chemical species which has one electron like hydrogen atom is given by Bohr's Model,

Rn=n²×R/Z

where Rn is radius of nth Shell, n is the Shell of which we have to find radius, Z is atomic number of the specie given and R is the Radius Of First orbit of that chemical Specie.

As in the question, we have

n=3

Z=1 For hydrogen

R=r

So putting into the formula,we get

R=9r

Answer 2

Answer:

4

Explanation:

answered !