Explain positronium consists of an electron and a positron

Assignment Help Chemistry
Reference no: EM13514104

Positronium consists of an electron and a positron (same mass, opposite charge) orbiting round their common centre of mass. The broad feature 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 Blamer series of positronium. What is the binding energy of the ground state of positronium?

Reference no: EM13514104

Questions Cloud

What is the angle of the third order inside the water casing : a diffraction grating 1.5 mm wide produces the fifth order pie/4 with light wavelength 650nm on the screen 80 mm away. What is the angle of the third order inside the water casing
Compute concentrations of hydroxide and hydronium ions : Calculate the concentrations of hydroxide and hydronium ions in a solution prepared by dissolving 0.308 g of solid NaOH in enough water to make 225 mL of solution. Kw = 1.0E-14. Hydroxide ion concentration
What is the wires resistance when it is hot : The heating element of a simple heater consists of a 1.9-m-long, 0.65-mm-diameter nichrome wire. What is the wire's resistance when it is hot
Explain the cell potential be higher with the addition : Why would the cell potential be higher with the addition of 6 M Na2S solution to .001 M of CuSO4 (compared to 6 M NH addition to .001 M CuSO4)
Explain positronium consists of an electron and a positron : Positronium consists of an electron and a positron (same mass, opposite charge) orbiting round their common centre of mass. The broad feature of the spectrum are therefore expected to be hydrogen-like, the differences arising largely from the mass..
Define how many milliliters of nh4cl must be added to nh3 : How many milliliters of 3.4 M NH4Cl must be added to 250 mL of 0.23 M NH3 to obtain a buffer solution having pH=9.40
What is the minimum value of youngs modulus allowed : A cable is 50.0 m long and has a diameter of 2.50cm. A force of 10,000 N is applied to the end of the cable. what is the minimum value of young's modulus allowed
Explain the decision-making process : discuss and reference concepts taken from the assigned textbook reading and relevant research. Also explain the decision-making process you experienced as a consumer when choosing this product or service.
Explain arsenic acid (h3aso4) is a triprotic acid with ka1 : Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5. 10-3, Ka2 = 8. 10-8, and Ka3 = 6. 10-10. Calculate [H + ], [OH ? ], [H3AsO4], [H2AsO4? ], [HAsO42- ], and [AsO43- ] in a 0.23 M arsenic acid solution.

Reviews

Write a Review

Chemistry Questions & Answers

  A mixture of 1374 g of h2 and 7031 g of br2 is heated in a

a mixture of 1.374 g of h2 and 70.31 g of br2 is heated in a 2.00-l flask at 700 k. the following equilibrium is

  Explain the same mechanism as the trans acid

What product or products would you expect to obtain by the addition of bromine to cis-cinnamic acid, assuming that it reacts by the same mechanism as the trans acid

  The biological reaction in water participates as a reactant

Give an example of a biological reaction in which water participates as a reactant and a reaction in which it participates as a product.

  A patient weighs 165 pounds and is to receive a drug at a

a patient weighs 165 pounds and is to receive a drug at a dosage of 45.0 mg per kg of body weight. the drug is supplied

  Describe how would your result be affected

Describe how would your result be affected if you mistook a negative Starch-iodide test and stopped adding the NaOCl solution too early?

  What is the rate constant for the reaction

If it takes 75.0 min for the concentration of a reactant to drop to 20% of its initial value in a first-order reaction, what is the rate constant for the reaction?

  A solution containing 347mm x analyte and 172 mm s standard

a solution containing 3.47mm x analyte and 1.72 mm s standard gave peak areas of 3473 and 10222 respectively in a

  Define the density of the cube in grams per cubic centimeter

A cube has a volume of 8.0cm (to the 3rd power) and a mass of 21.6 grams. The density of the cube, in grams per cubic centimeter, is best expressed as

  Compute the electrical work done buy a dry cell

Calculate the electrical work done buy a dry cell in 1.00 H if it produces a steady current of 0.70 A at 1.5 V. Answer expressed in jeules.

  Benzyltriphenylphosphonium chloride and sodium hydroxide

Write a balanced equation for each of the two steps of the reaction, namely: (1) the reaction between benzyltriphenylphosphonium chloride and sodium hydroxide

  How much heat is required to convert 200 of ethanol at 23

how much heat is required to convert 20.0 of ethanol at 23 to the vapor phase at 78 ? ethanol boils at 78. its density

  Explain position based on the de broglie wavelength

A 247-ln fullback runs the 40-yd dash at a speed of 19.99 +/- 0.10 mi/h and has a wavelength of 7.79E-37. What is the uncertainty in his position based on the de Broglie wavelength

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd