English
Karnataka Board PUCPUC Science Class 11

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?

Advertisements
Advertisements

Question

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?

Numerical
Advertisements

Solution

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

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Structure of Atom - EXERCISES [Page 70]

APPEARS IN

NCERT Chemistry Part 1 and 2 [English] Class 11
Chapter 2 Structure of Atom
EXERCISES | Q 2.16 - (i) | Page 70

RELATED QUESTIONS

State Bohr's postulate to define stable orbits in the hydrogen atom. How does de Broglie's hypothesis explain the stability of these orbits?


In Bohr’s model of the hydrogen atom, the radius of the first orbit of an electron is r0 . Then, the radius of the third orbit is:

a) `r_0/9`

b) `r_0`

c) `3r_0`

d) `9r_0`


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


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?


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


Ratio of longest to shortest wavelength in Balmer series is ______.


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?


Why was a change in the Bohr Model of atom required? Due to which important development (s), concept of movement of an electron in an orbit was replaced by, the concept of probability of finding electron in an orbital? What is the name given to the changed model of atom?


The energy of an electron in hth orbit of hydrogen atom is –13.6/n2ev energy required to excite the electron from the first orbit to the third orbit is


A set of atoms in an excited state decays ______.


Use Bohr's postulate to prove that the radius of nth orbit in a hydrogen atom is proportional to n2.


The number of times larger the spacing between the energy levels with n = 3 and n = 8 spacing between the energy level with n = 8 and n = 9 for the hydrogen atom is ______.


If 13.6 eV energy is required to ionize the hydrogen atom, then the energy required to remove an electron from n = 2 is ______.


A 100 eV electron collides with a stationary helium ion (He+) in its ground state and exits to a higher level. After the collision, He+ ions emit two photons in succession with wavelengths 1085 Å and 304 Å. The energy of the electron after the collision will be ______ eV.

Given h = 6.63 × 10-34 Js.


In Bohr's theory of hydrogen atom, the electron jumps from higher orbit n to lower orbit p. The wavelength will be minimum for the transition ______.


Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is ______.


An electron in a hydrogen atom has an energy of -3.4 eV. The difference between its kinetic and potential energy is ______.


How much is the angular momentum of an electron when it is orbiting in the second Bohr orbit of hydrogen atom?


The figure below is the Energy level diagram for the Hydrogen atom. Study the transitions shown and answer the following question:

  1. State the type of spectrum obtained.
  2. Name the series of spectrum obtained.


Calculate the energy associated with third orbit of He+.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×