Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Physics
Chapter
Atomic Physics

NTA Abhyas 2020 · Physics · Atomic Physics

The energy required to remove the electron from a singly ionized...

The energy required to remove the electron from a singly ionized Helium atom is 2.22. 2 times the energy required to remove an electron from helium atom. The total energy required to ionize the Helium atom completely is close to

Options

  1. A34 eV
  2. B20 eV
  3. C79 eV
  4. D109 eV

Correct answer

C. 79 eV

Step-by-step solution

The energy required to remove e−e^{−} from singly ionized helium atom =54.4eV= 54.4eV

The energy required to remove e−e^{−} from helium atom =xeV= xeV

given 54.4eV=2.2x⇒x=24.73eV54.4eV = 2.2x ⇒ x = 24.73eV

The energy required to ionize helium atom =79.13eV≈79eV= 79.13eV \approx 79eV
Practice Atomic Physics on Quantrex Academy →

More from Atomic Physics

Consider a hydrogen atom with v_k , r_k , and K_k denoting the velocity, orbital radius… JEE Advanced 2026The ratio of momentum of the photons of the 1^ st and 2^ nd line of Balmer series of… JEE Main 2026In the hydrogen atom, the electron makes a transition from the higher orbit ( i ) to a… JEE Main 2026In Rutherford's alpha-particle scattering experiment, only a few alpha particles rebound… JEE Main 2026Using Bohr's model, calculate the ratio of the magnetic fields generated due to the… JEE Main 2026Angular momentum of an electron in a hydrogen atom is (3h)/(π) , then the energy of the… JEE Main 2026Two electrons are moving in orbits of two hydrogen like atoms with speeds 3 × 10^ 5 ~m /… JEE Main 2026In hydrogen atom spectrum, (R arrow Rydberg's constant ) A. the maximum wavelength of the… JEE Main 2026 Full Atomic Physics list All NTA Abhyas JEE Main PYQs