Question

Q4. A beta emission has a wavelength of 1,280 nm, what energy level (n) did the electron fall from?

Q5. The gamma Lyman emission of hydrogen corresponds to an electron dropping from which which energy level to which other energy level?

Q6. What is the wavelength of em radiation emitted from a n=4 to n=2 transition of hydrogen? What is the name of this transition?

Answer 1

so answer = n₂ = 5 to n₁ = 3 transition corresponds to wavelength 1280 nm

5. In Lyman series, n₁ = 1st orbit [[from the table]]

so gamma lyman emission would be from n2 = 4th orbit

6.

if n1 = 2nd orbit, it means its Blamer series always

so n2 = 4 to n1 = 2

it would be Balmer beta emission, its 486 nm [from the table]