Advertisements
Advertisements
प्रश्न
How would the ionization energy change when the electron in the hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge?
Advertisements
उत्तर
The ionization energy of Hydrogen atom is
EH ∝ me .....(1)
When mass of electron is replaced by a particle having mass=200me, then
EH' ∝ 200me .....(2)
From (1) and (2), we have
EH'=200EH=200×(−13.6)=−2720 eV (∵EH=−13.6 eV)
APPEARS IN
संबंधित प्रश्न
Obtain an expression for the frequency of radiation emitted when a hydrogen atom de-excites from level n to level (n − 1). For large n, show that this frequency equals the classical frequency of revolution of the electron in the orbit.
The simple Bohr model is not applicable to He 4 atom because ______.
- He4 is an inert gas.
- He4 has neutrons in the nucleus.
- He4 has one more electron.
- electrons are not subject to central forces.
Imagine removing one electron from He4 and He3. Their energy levels, as worked out on the basis of Bohr model will be very close. Explain why.
A particle of mass m is moving around the origin with a constant force F pulling it towards the origin. If Bohr model is used to describe its motion, the radius of the nth orbit and the particle’s speed v in the orbit depend on n as ______.
Which expression gives the angular momentum allowed by Bohr’s second postulate?
Who explained the quantisation of the orbiting electron’s angular momentum in 1923?
How did de Broglie regard the electron in its circular orbit?
In de Broglie’s relation \[\lambda=\frac{h}{p}\], what does \[p\] represent?
What is the electron’s de Broglie wavelength when its momentum magnitude is \[mv_n\]?
What property of spectral lines can Bohr’s model not explain, despite predicting frequencies for hydrogenic atoms?
