Question

Calculate the radii of first three orbits of hydrogen atom

Answer 1

Answer:

Answer

Atomic number Z is equal to 1.

Hence the radius of nth orbit, r

n

=0.529n

2

A

For first three orbits, n values are 1,2 and 3

ratio of radii of first three orbit r

1

:r

2

:r

3

=n

1

2

:n

2

2

:n

3

2

⇒1

2

:2

2

:3

2

⇒1:4:9

Answer 2

Answer:

Radius for each circular orbit = 0. 529 n2A