हिंदी

Find the angular momentum of an electron revolving in the second orbit in Bohr's hydrogen atom.

Advertisements
Advertisements

प्रश्न

Find the angular momentum of an electron revolving in the second orbit in Bohr's hydrogen atom.

संख्यात्मक
Advertisements

उत्तर

The angular momentum of an electron revolving around the nucleus in a hydrogen atom is quantised and given by

`L = (nh)/(2pi)` For n = 2

`L = (2h)/(2pi) = h/pi = (6.6 xx 10^-34)/3.14`

= `2.10 xx 10^34` kg m2s-1

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2022-2023 (March) Delhi Set 1

APPEARS IN

वीडियो ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्न

Using Bohr's postulates of the atomic model, derive the expression for radius of nth electron orbit. Hence obtain the expression for Bohr's radius.


The energy associated with the first orbit in the hydrogen atom is - 2.18 × 10-18 J atom-1. What is the energy associated with the fifth orbit?


Using Bohr’s postulates, obtain the expression for the total energy of the electron in the stationary states of the hydrogen atom. Hence draw the energy level diagram showing how the line spectra corresponding to Balmer series occur due to transition between energy levels.


Using Bohr’s postulates, obtain the expression for total energy of the electron in the nth orbit of hydrogen atom.


The energy of an electron in an excited hydrogen atom is - 3.4 eV. Calculate the angular momentum of the electron according to Bohr's theory. (h = 6.626 × 10-34 Js)


An ionised H-molecule consists of an electron and two protons. The protons are separated by a small distance of the order of angstrom. In the ground state ______.

  1. the electron would not move in circular orbits.
  2. the energy would be (2)4 times that of a H-atom.
  3. the electrons, orbit would go around the protons.
  4. the molecule will soon decay in a proton and a H-atom.

Taking the Bohr radius as a0 = 53 pm, the radius of Li++ ion in its ground state, on the basis of Bohr’s model, will be about ______.


The energy required to remove the electron from a singly ionized Helium atom is 2.2 times the energy required to remove an electron from Helium atom. The total energy required to ionize the Helium atom completely is ______. 


On the basis of Bohr's theory, derive an expression for the radius of the nth orbit of an electron of hydrogen atom.


The de Broglie wavelength of an electron in the first Bohr’s orbit of hydrogen atom is equal to ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×