Question

If velocity of Be+3 ion is x in 4th bohr's orbit. Then
calculate velocity of e- in 4th excited state of He+ ion
in terms of x.​

Answer 1

Answer:

Velocity of an electron in Bohr's orbit-

V=

h

2πKe

2

×

n

Z

ms

−1

V=2.188×10

6

×

n

Z

ms

−1

for Be

+3

,Z=4,n=4 for 3

rd

excite state

V=2.188×10

6

×

4

4

ms

−1

V=

1000

2.188×10

6

×

4

4

kms

−1

V=2.188×10

3

Km/sec