Hydrogen Spectrum

Question 1

Energy values for orbitals n=1 to n= infinite

Answer 1

N  ------>  E(eV)
  1                -13.60
  2                -3.40
  3                -1.51
  4                -0.85
  5                -0.54
  6                -0.38
  7                 -0.28
Infinity              0

Question 2

Different series

Answer 2

Low B.P B.P 
H
L- Lyman Series.            (1)
B- Balmer Series.           (2)
P- Paschen Series.        (3)
B- Brackett Series.        (4)
P- Pfund Series.             (5)
H- Humphrey Series.    (6)

Question 3

Total number of emission spectral lines

Answer 3

[/\ n * (/\n + 1) ]/ 2

Question 4

Rydberg’s energy

Answer 4

Rch = 2.17x 10^-18 J

Question 5

Radius of nth orbit of hydrogen

Answer 5

0.529*n^2 A

Question 6

Radius of nth orbit of a hydrogen like atom

Answer 6

0.53 x n^2/Z

Question 7

Energy of a hydrogen like atom is proportional to

Answer 7

E ~ n^2

E ~ Z^2