(a)
Interpretation:
The difference in the magnitude calculated in Example
Concept introduction:
The dipole moment is defined as the charge separation between two atoms or ions. It is used to determine the polarity of atoms or ions.
The magnetic dipole,
(b)
Interpretation:
The overall magnetic dipole caused by the two particles in mutual orbit about each other is to be calculated.
Concept introduction:
The dipole moment is defined as the charge separation between two atoms or ions. It is used to determine the polarity of atoms or ions.
The magnetic dipole,
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Physical Chemistry
- An electron-positron system is in n=2n=2 state. (a) Find the ionization energy (energy required to free the electron off the hold of positron) and the radius of the orbit. Interpret this radius in the context of the electron-positron system. (b) Compare the radius found in above with an estimate coming from uncertainty principle. (c) Find the wavelength of the photon emitted when the system decays to its ground state. (d) How much do the results change in the above if electron mass is used instead of the reduced mass for the system? (e) Is the system a relativistic system? Support your answer with an appropriate calculation. NOTE: (1) Positron is the antiparticle of electron. It has the same mass as that of an electron but opposite electric charge with the same magnitude. (2) Use reduced mass unless asked otherwise.arrow_forwardWhat is the ratio of weights of populations due to the effects of nuclear statistics for 35Cl2?arrow_forwardThe nuclear radii of aluminum and gold are approximately r = 3.6 fm and 7.0 fm, respectively. The radii of protons and alpha particles are 1.3 fm and 2.6 fm, respectively. (a) What energyα particles would be needed in head-on collisions for the nuclear surfaces to just touch? (This is about where the nuclear force becomes effective.) (b) What energy protons would be needed? In both (a) and (b), perform the calculation for aluminum and for gold.arrow_forward
- The positron has charge +e and mass equal to the electron mass. Calculate in electronvolts the ground- state energy of positronium-an "atom" that consists of a positron and an electron. Consider a positronium as a hydrogenlike atom with reduced mass μ = meme /(me + me). -6.8 eV O None of the given choices. -185 eV O-13.6 eV O 3.69 eVarrow_forwardPositronium 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?arrow_forwardwhat is the energy of radiation whose frequency is 1.9 x 1015sec-1 (Hz)?arrow_forward
- Differentiate between Nuclear Spin and Magnetic Resonance Imaging?arrow_forwardWhat is the neutron seperation energy of 120Xe?arrow_forward3. Consider the following for ¹H8¹Br: Two overlapping bands with lines 16.92 cm-¹ apart, one strong band centered at 2559 cm³¹ and another at 2468 cm¹ that increases in intensity when temperature is raised. Calculate re, K, and De for ¹H8¹Br. Given: mass of 8¹Br = 80.9163 amu, mass of ¹H = 1.007825 amuarrow_forward
- Professor E. Lawrence suggested that to separate Uranium-235 from Uranium-238 a mass spectrograph could be used. The mass of a Uranium-235 atom is given by. M = 235*1.66 x 1027 kg and Uranium-238 M 238(1.66 x 10-27 kg. The accelerating voltage is 5000 volts, and the magnetic field is B = 0.200 T. What %3D is the difference in the radius of their orbits?arrow_forwardTrue or False 1. Gamma radiation is stronger than infared radiation because it has a much lower frequency. 2. A blue shirt appears blue because the fabric is dyed with a color that absorbs all of the blue light. 3. A solution that appears orange will absorb light at the 450-490nm range. 4. UV-Vis spectroscopy is necessary for the analysis of organic compound because most organic compounds are colored green in the presence of an extracting solvent. 5. The spectrophotometer is able to detect and report absorbance values of a compound based on the compound's ability to absorb radiation or emit radiation. 6. A common electronic transition for an organic compound is the electron shifting from a bonding orbital to a nonbonding orbital. 7. UV-Vis spectroscopy normally reports data in the form of bands rather than single peaks because of overlapping electronic transitions that are being recorded by the detector. 8. When using linear regression to translate absorption data using Beer's law,…arrow_forward13. Evaluate (a) the neutron separation energies of 'Li, 1Zr, and 236U; (b) the proton separation energies of 20Ne, 5$Mn, and 197Au.arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning