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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?

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प्रश्न

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?

संख्यात्मक
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उत्तर

Energy associated with the fifth orbit of hydrogen atom is calculated as:

`"E"_5 = (-(2.18xx10^(-18)))/(5)^2 = (-2.18xx 10^(-18))/25`

E5 = - 8.72 × 10-20 J

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पाठ 2: Structure of Atom - EXERCISES [पृष्ठ ७०]

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

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.


How many electrons in an atom may have the following quantum numbers?

n = 3, l = 0


  1. Using the Bohr’s model, calculate the speed of the electron in a hydrogen atom in the n = 1, 2 and 3 levels.
  2. Calculate the orbital period in each of these levels.

State Bohr postulate of hydrogen atom that gives the relationship for the frequency of emitted photon in a transition.


The numerical value of ionization energy in eV equals the ionization potential in volts. Does the equality hold if these quantities are measured in some other units?


When a photon stimulates the emission of another photon, the two photons have
(a) same energy
(b) same direction
(c) same phase
(d) same wavelength


The Bohr radius is given by  `a_0 = (∈_0h^2)/{pime^2}`. Verify that the RHS has dimensions of length.


Evaluate Rydberg constant by putting the values of the fundamental constants in its expression.


A filter transmits only the radiation of wavelength greater than 440 nm. Radiation from a hydrogen-discharge tube goes through such a filter and is incident on a metal of work function 2.0 eV. Find the stopping potential which can stop the photoelectrons.


Suppose in an imaginary world the angular momentum is quantized to be even integral multiples of h/2π. What is the longest possible wavelength emitted by hydrogen atoms in visible range in such a world according to Bohr's model?


State any two Bohr’s postulates and write the energy value of the ground state of the hydrogen atom. 


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


If the radius of first electron orbit in hydrogen atom be r then the radius of the fourth orbit ill be ______.


Hydrogen atom has only one electron, so mutual repulsion between electrons is absent. However, in multielectron atoms mutual repulsion between the electrons is significant. How does this affect the energy of an electron in the orbitals of the same principal quantum number in multielectron atoms?


Calculate the energy and frequency of the radiation emitted when an electron jumps from n = 3 to n = 2 in a hydrogen atom.


Consider aiming a beam of free electrons towards free protons. When they scatter, an electron and a proton cannot combine to produce a H-atom ______.

  1. because of energy conservation.
  2. without simultaneously releasing energy in the from of radiation.
  3. because of momentum conservation.
  4. because of angular momentum conservation.

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.


According to Bohr atom model, in which of the following transitions will the frequency be maximum?


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