How much energy is required to ionise a hydrogen atom if an electron occupies n = 5 orbit? Compare your answer with the ionisation energy of H atom (energy required to remove the electron from n = 1 orbit)
How much energy is required to ionise a hydrogen atom if an electron occupies n = 5 orbit? Compare your answer with the ionisation energy of H atom (energy required to remove the electron from n = 1 orbit)
-
1 Answer
-
Energy of a hydrogen present in a particular energy shell,
En = 13.12 x 105 / n2 J mol-1 = (13.12 x 105) / (n2 x 6. 022 x 1023) J atom-1
= -2.18 x 10-18 / n2 J atom-1
Step I: Ionisation energy for hydrogen electron present in orbit n = 5
IE5 = E∞ - E5 = 0 – [ (-2.18 x 10-18) / 25] J atom-1 = 8.72 x 10-20 J atom-1
Step II: Ionisation energy for hydrogen electron present in orbit n = 1
IE1 = E∞ - E1 = 0 – [ (-2.18 x 10-18) / 1] J atom-1 = 2.18 x 10-18 J atom-1
Therefore IE1 / IE5 = (2.18 x 10-18 J atom-1) / (8.72 x 10-20 J atom-1) = 25
The energy required to remove an electron from first orbit in a hydrogen atom is 25 ti
...more
Similar Questions for you
Kindly go through the answers
(7.00)
Kindly consider the following Image
In 4d orbital, n = 4 and
Radial nodes =
Radial nodes = 4 – 2 – 1 = 1
And angular nodes,
Here, number of unpaired electrons, n = 1
Spin only moment ;
= 173 × 10-2 B.M
=
= (At constant pressure)
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 687k Reviews
- 1800k Answers