Home
Class 12
PHYSICS
A : Uncertainty principle demands that a...

A : Uncertainty principle demands that an electron confined to a nucleus must have very high energy so that the electron cannot reside in a nucleus.
R: The electrostatic attraction between electron and proton is large at such a small distance but is not enough to bind such a high -energy electron.

Text Solution

Verified by Experts

The correct Answer is:
1
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • NUCLEI

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-C)|81 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE ENGLISH|Exercise Assignment Section J (Aakash Challengers Questions)|5 Videos

  • OSCILLATIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section D) (ASSERTION-REASON TYPE QUESTIONS)|13 Videos

Similar Questions

Explore conceptually related problems

The electrostatic potential energy between proton and electron separated by a distance 1 Å is

When the atomic electron is at infinite distance from the nucleus, its energy is

Assertion: If electrons in an atom were stationary, then they would fall into the nucleus. Reason: Electrostatic force of attraction acts between negatively charged electrons and positive nucleus.

Why electron cannot exist inside the nucleus according to Heisenberg's uncertainty principle?

Prove that a photon in a vacuum, no matter how high its energy is, cannot transform to an electron-positron pair.

The Bohr moden does not apply when more than one electron orbit the nucleues because it does not account for the electrostatic force that the electron exert on one another.For instance , an electrically neutral lithium atom (Li) contains three electrons in orbit around a nucleus that includes three protons (Z = 3) , and Bohr's model can be used for the doubly charged positive ion of lithium (Li^(2)^(+)) that results when two electrons are removed from the neutral atom, leaving only one electron to orbit the nucleus . Obtain the ionization energy that is needed to remove the remaining electron from (Li^(2)^(+))

The second ionization potential of Be is 17.98 eV if the electron in Be is assumed to move in a spherical orbit with a central field of effective nuclear charge (Z_(eff)) consisting of the nucleus and other electron by haw many units of charge in the nucleus shielded by other electrons? (the energy of electrons in first Bohr of H is -13.6 eV) If the extent of shielding by the if electron of Li atom is the same as you have calculated above , find the ionization potential of Li

When a particle as an electron exist in a box, three quantum numbers are necessary to describe the spatial distributioni fo electrons in atoms. The describe an electron in an atom completely, a fourth quantum number, m_(s) called the spin quantum number must be specified. This is because every electron has magnetic moment associated with it which is quantized in one of two possible orientations. Electrons having the same spin strongly repel each other and tend to occupy different region of space. This result of a fundamental law of nature is known as Pauli exclusion principle. For which one of the following sets of quantum numbers will an electron have the highest energy?

An electron and a proton are separated by a large distance and the electron approaches the proton with a kinetic energy of 2 eV. If the electron is captured by the proton to form a hydrogen atom in the ground state, what wavelength photon would be given off?

An electron and a proton are separated by a large distance and the electron approaches the proton with a kinetic energy of 2 eV. If the electron is captured by the proton to form a hydrogen atom in the ground state, what wavelength photon would be given off?

Home
Profile