हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

Calculate the radius of Bohr’s fifth orbit for hydrogen atom

Advertisements
Advertisements

प्रश्न

Calculate the radius of Bohr’s fifth orbit for hydrogen atom

संख्यात्मक
Advertisements

उत्तर

Radius of Bohr’s nth orbit for hydrogen atom is given by,

rn = (0.0529 nm) n2

For, n = 5

r5 = (0.0529 nm) (5)2

r5 = 1.3225 nm

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Structure of Atom - EXERCISES [पृष्ठ ७०]

APPEARS IN

एनसीईआरटी Chemistry Part 1 and 2 [English] Class 11
अध्याय 2 Structure of Atom
EXERCISES | Q 2.16 - (ii) | पृष्ठ ७०

संबंधित प्रश्न

An electron is orbiting in 5th Bohr orbit. Calculate ionisation energy for this atom, if the ground state energy is -13.6 eV.


What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is –2.18 × 10–11 ergs.


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.


Radiation from hydrogen discharge tube falls on a cesium plate. Find the maximum possible kinetic energy of the photoelectrons. Work function of cesium is 1.9 eV.


Mention demerits of Bohr’s Atomic model.


According to Bohr's theory, an electron can move only in those orbits for which its angular momentum is integral multiple of ____________.


Consider two different hydrogen atoms. The electron in each atom is in an excited state. Is it possible for the electrons to have different energies but same orbital angular momentum according to the Bohr model? Justify your answer.


In form of Rydberg's constant R, the wave no of this first Ballmer line is


The wavelength of the first time line of Ballmer series is 6563 A°. The Rydberg constant for hydrogen is about:-


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?


If a proton had a radius R and the charge was uniformly distributed, calculate using Bohr theory, the ground state energy of a H-atom when (i) R = 0.1 Å, and (ii) R = 10 Å.


The ground state energy of hydrogen atoms is -13.6 eV. The photon emitted during the transition of electron from n = 3 to n = 1 unknown work function. The photoelectrons are emitted from the material with a maximum kinetic energy of 9 eV. Calculate the threshold wavelength of the material used.


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 ______. 


A hydrogen atom in is ground state absorbs 10.2 eV of energy. The angular momentum of electron of the hydrogen atom will increase by the value of ______.

(Given, Planck's constant = 6.6 × 10-34 Js)


In hydrogen atom, transition from the state n = 6 to n = 1 results in ultraviolet radiation. Infrared radiation will be obtained in the transition ______.


Calculate the energy associated with third orbit of He+.


Which from following is CORREСТ relationship between wavelength and momentum of electron?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×