I need the answer quickly Consider a positronium atom consisting of a positron and electronrevolving about their common center of mass half way between them, Ifsuch a system were a normal atom (a) How would its emission spectrumcompare to that of the hydrogen atom? (b) What would be the radius ofthe ground state orbit of positronium?

Answered: Image /qna-images/answer/a45c5de5-20a5-4573-951d-bc44a0285d20.jpg

Answered: Consider a positronium atom consisting…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter5: Electron Configurations And The Periodic Table

Section: Chapter Questions

Problem 141QRT

See similar textbooks

Similar questions

Compare the mass of the electron, me, with a the reduced mass of a hydrogen atom; b the reduced mass of a deuterium atom (deuterium=2H); c the reduced mass of a carbon 12 atom having a +5 charge, that is, C5+. Suggest a conclusion to the trend presented by parts a-c.
As discussed in the text, we can draw an analogy between theattraction of an electron to a nucleus and the act of perceivinglight from a light bulb through a frosted glass shade, asshown in the illustration. Using the simple method of estimating effective nuclearcharge, Equation 7.1, how does the intensity of the light bulband/or the thickness of the frosting change in the followingcases: (a) Moving from boron to carbon? (b) Moving fromboron to aluminum? [Section 7.2]
The speed of a thermal neutron is known to within 2.0 km/s. What is the minimum uncertainty in the position of the thermal neutron?
Positronium consists of an electron and a positron (same mass, opposite charge) orbiting round their common centre of mass. The broad features of the spectrum are therefore expected to be hydrogen-like, the differences arising largely from the mass differences. Predict the wavenumbers of the first three lines of the Balmer series of positronium. What is the binding energy of the ground state of positronium?
The strongest emissions line for helium is at 420 nm. What is the formula for determining the frequency of this light and what would be the process with correct units?
Describe the two revolutionaryideas by de Broglie and Heisenberg thatled to the development of quantummechanics.
By what fraction does the mass of an H atom decreasewhen it makes an n=3 to n=1 transition?
A synchrotron is an extremely powerful source of X-rays. The X-rays alsocan be geerated by laboratory sources such as sealed tube and rotatinganode generators. In your own words, illustrate how the X-rays radiationgenerated by the synchroton radiation.
Lithium has a work function of 2.90 eV. Light having awavelength of 1850 Å is shined on Li. Determine the kineticenergy of the electron ejected.
An electron is accelerated through an electric potential toa kinetic energy of 2.15 * 10-15 J. What is its characteristicwavelength? [Hint: Recall that the kinetic energy of a movingobject is E = 12mv2, where m is the mass of the object and n isthe speed of the object.]
Suppose that you designed a spacecraft to work by photon pressure. The sai l was a completely absorbing fabric of area 1.0 km2 and you directed a red laser beam of wavelength 650 nm on to it from a base on the Moon. What is (a) the force, (b) the pressure exerted by the rad iation on the sa il? (c)Suppose the mass of the spacecraft was 1.0 kg. Given that, after a period of acceleration from standstil l, speed= (force/mass) x time, how long would it take for the craft to accelerate to a speed of 1.0 m s-1?
If you were to calculate the distance from the nucleus where maximum probability density occurs (i.e. peaks in the diagram), what would you do? Briefly describe in words. You do not need to solve for the exact numbers.

SEE MORE QUESTIONS

Recommended textbooks for you

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Physical Chemistry

Chemistry

ISBN:

9781133958437

Author:

Ball, David W. (david Warren), BAER, Tomas

Publisher:

Wadsworth Cengage Learning,

Chemistry & Chemical Reactivity

Chemistry

ISBN:

9781337399074

Author:

John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Physical Chemistry

Chemistry

ISBN:

9781133958437

Author:

Ball, David W. (david Warren), BAER, Tomas

Publisher:

Wadsworth Cengage Learning,

Chemistry & Chemical Reactivity

Chemistry

ISBN:

9781337399074

Author:

John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:

Cengage Learning

Chemistry: Principles and Practice

Chemistry

ISBN:

9780534420123

Author:

Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS