Incorrect Question 5 What element has a Ka line with wavelength 1.46 × 10-¹¹ m? Show your calculations on the pdf to get credit. Protactinium Uranium Zirconium Niobium 0/5 pts
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- (a) An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project. If the atom is 1.00 m in diameter, how big should she try to make the nucleus? (b) How easy will this be to do?(a) Show that if you assume the average nucleus is spherical with a radius r=r0A1/3, and with a mass at A u, then its density is independent at A. (b) Calculate that density in u/fm3 and kg/m3, and compare your results with those found in Example 31.1 for 56Fe.CT scanners do not detect details smaller than about 0.5 Is this limitation clue to the wavelength of x lays? Explain.
- a.) What does the number of lines on the emission spectrum tell us about the electron decays for the elements or compounds? b.) What does the line spacing tell us about the electron structure?A USATestprep, LLC - Online State t x odules/questions/qq.php?testid=1745&assignment_id3D47667397&strand=8721&element=73561&totalQuestions=.. Wages - Prote. ne to Beta PRACTICE I HELP JULIE Y GIA RESS GNMENTS ASSIGNMENT 1 23 4S 89 10 Save Submit Two identical charges are separated by a distance d. If the distance between them is increased to 3d, what will happen to the force of repulsion between them? es ) A) It wilt be one-ninth the original force. B) It will be one-third the original force. C) It will be nine times the original force. D) It will be three times the original force. Electrical and Magnetic Forces Regular CalcBelow an energy dispersive spectroscopy (EDS) graph of a sample that has been coated with carbon for electron collection is given. Determine what elements this sample definitely consists of. Explain your reasoning. Which of the elements present in this sample can cause fluorescence in Fe (26) if it was present here? Counts 2500 2000 1500 1000 500 0.5 1 1.5 2.5 3 3.5 4 4.5 E [keV]
- Consider the lead isotope 207Pb.a. How many electrons, protons, and neutrons are in a neutral 207Pb atom?b. The lead nucleus has a diameter of 14.2 fm. What is the density of matter in a lead nucleus?c. The density of lead is 11,400 kg/m3. How many times the density of lead is your answer to part b?In the Star Trek unaversive there is a creature called a Horta. The Horta is silicon-based life form and would have a bond strength of 3.80 eV. What wavelength of photon would you need in a phasor weapon to destroy the Horta?How can elements with low atomic numbers have so many spectral lines? 1. Elements with low atomic numbers usu- ally don't react chemically with other ele- ments. 2. Elements with low atomic numbers have many free electrons. 3. Elements with low atomic numbers have small masses. 4. Electrons can be boosted to many energy levels, thus making many different transitions to ground level and levels between.
- 3.2 The density of the b.c.c. molybdenum is 10.2 g.cm³, and its atomic weight is 95.94. Calculate: (i) the side of the cubic unit cell, and (ii) the interatomic spacing.Q1 / What is the isotope used in this experiment when the average distance between two successive interactions is 1.25 cm, for density is 6.5 g/cm', the elastic scattering cross section 8 b, and the absorption cross section is 0.18 b.A ols.liu.edu.lb/mod/quiz/attempt.php?attempt=D196504&cmid=11645 Dashboard BE Events A My Courses This course Find RAB in the network shown. 6 kQ 6 k2 2 kQ RAB 6 kQ BO Select one: O a. 3 K O b. 6 K O c. 18 K KD d. 2 K e. None of them 78 EENG250 Midterm .. O Settings 田 pe here to search