Advertisements
Advertisements
Question
Draw energy level diagram for a hydrogen atom, showing the first four energy levels corresponding to n=1, 2, 3 and 4. Show transitions responsible for:
(i) Absorption spectrum of Lyman series.
(ii) The emission spectrum of the Balmer series.
Advertisements
Solution
APPEARS IN
RELATED QUESTIONS
What is the maximum number of emission lines when the excited electron of an H atom in n = 6 drops to the ground state?
Calculate the energy required for the process
\[\ce{He^+_{(g)} -> He^{2+}_{(g)} + e^-}\]
The ionization energy for the H atom in the ground state is 2.18 ×10–18 J atom–1
In which of the following systems will the wavelength corresponding to n = 2 to n = 1 be minimum?
Mention demerits of Bohr’s Atomic model.
The dissociation constant of a weak base (BOH) is 1.8 × 10−5. Its degree of dissociation in 0.001 M solution is ____________.
Which of these statements correctly describe the atomic model according to classical electromagnetic theory?
A set of atoms in an excited state decays ______.
When an electron falls from a higher energy to a lower energy level, the difference in the energies appears in the form of electromagnetic radiation. Why cannot it be emitted as other forms of energy?
A 100 eV electron collides with a stationary helium ion (He+) in its ground state and exits to a higher level. After the collision, He+ ions emit two photons in succession with wavelengths 1085 Å and 304 Å. The energy of the electron after the collision will be ______ eV.
Given h = 6.63 × 10-34 Js.
Write the ionisation energy value for the hydrogen atom.
