Question

3. What photonic energy would be required to move an electron from energy level:

a.
1 to 5?
b.
1 to 3?
c.
d.
e.
2 to 3?
2 to 4?
2 to 6?

Answer 1

Energy of nth orbit of H-atom, E

n

=−

n

2

13.6

eV

∴ ΔE=E

5

−E

1

=−13.6(

5

2

1

−

1

2

1

) eV

∴ ΔE=13.6×

25

24

=13.056 eV