Q33.The energy of an electron in first Bohr's orbit of H atom is −13.6 eV. The energy value of electron in the first excited state of Li2+ is : (1) 27.2 eV (2) −30.6 eV (3) 30.6 eV (4) −27.2 eV
What This Question Tests
This question requires the application of Bohr's formula for the energy of an electron in a hydrogenic species, considering the atomic number (Z) and the principal quantum number (n).
Concepts Tested
Formulas Used
E_n = -13.6 * Z^2 / n^2 eV
📚 NCERT Sections This Tests
12.4 — The Ground State Energy Of Hydrogen Atom Is –13.6 Ev. What Are The
Physics Class 12 · Chapter 12
12.4 The ground state energy of hydrogen atom is –13.6 eV. What are the kinetic and potential energies of the electron in this state?
12.6 — (A) Using The Bohr’S Model Calculate The Speed Of The Electron In A
Physics Class 12 · Chapter 12
12.6 (a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels.
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
📋 Question Details
- Chapter
- Atomic Structure
- Topic
- Bohr's model, Energy of electron
- Year
- 2014
- Shift
- 09 Apr Online
- Q Number
- Q33
- Type
- MCQ
- NCERT Ref
- Class 11 Chemistry Ch 2: Structure of Atom
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