Atomic StructureMedium
Question
The energy difference between the first two levels of hydrogen atom is 10.2 eV. What is the corresponding energy difference for a singly ionized helium atom ?
Options
A.10.2 eV
B.20.4 eV
C.40.8 eV
D.81.6 eV
Solution
En = 13.6 
ᐃ EH =
= 10.2eV
ᐃEHe =
= 40.8 eV
ᐃ EH =
= 10.2eVᐃEHe =
= 40.8 eVCreate a free account to view solution
View Solution FreeMore Atomic Structure Questions
Figure shows an electron gun that emits electrons at very small angel with axis. The paraxial electrons emitted from the...In the Bohr′s atomic model electron revolves in an orbit with velocity v. It produces magnetic field B at centre. ...If elements which principle quantum number n > 4 were not allowed in nature, the number of possible elements would be...The difference between the longest wavelength line of the Balmer series and shortest wavelength line of the Lyman series...The threshold wavelength for photoelectric emission from a material is $5200\ \text{Å}$. Photoelectrons will be emitted ...