If an atom’s size is calculated by the sphere’s radius that contains 80% of charge density of e- in outermost orbitals, then solve for the size of H atom in ground state. If percentage for charge density is changed to 0%, 20%, 50%, 90% 100%, calculate how the size changes.
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If an atom’s size is calculated by the sphere’s radius that contains 80% of charge density...
Atkins Exercise 9.3(b): When ultraviolet radiation of wavelength 58.4 nm from a helium lamp is directed on to a sample of xenon, electrons are ejected with a speed of 1.79 Mm s 1. Calculate the ionization energy of xenon. Atkins Exercise 9.9(a) (Extra Credit): Calculate the average kinetic and potential energies of an electron in the ground state of a hydrogen atom. Atkins Problem 9.18 (Extra Credit: The “size” of an atom is sometimes considered to be measured by the...
1. In the ground state of the H-atom the nuclear charge can be treated in first approxi- mation as a point charge centered at the origin and an electron density of A(r) =-교exp (-5) πα3 Here a is the Bohr radius, r-|ศ, and e is the elelnentary charge. (a) Determine the electric field strength E and the potential as a function of r. (b) Discuss the two limiting cases r < a and a Hint: you may find the following...
An infinitely long cylindrical dielectric of radius b contains charge within its volume of density ρv = aρ2, where a is a constant. Find the electric field strength, E, both inside and outside the cylinder.
answer a b or c
Why is the atomic radius of magnesium ion much smaller than that of a neutral charged magnesium atom? (See the atomic radius graph) The magnesium ion's electrons require less space. No electrons are lost, they move to unoccupied spaces about the nucleus. The magnesium ion has fewer principle quantum energy levels, this causes a decrease in atomic radius. The magnesium ion has a higher Z-effective nuclear charge. The magnesium ion has more principle quantum energy...
2. In the derivation of the energy levels in the hydrogen atom one commonly assumes that the nucleus is a point charge. However, in reality the size of the nucleus is of the order of Im = 10-15m. Since this is very much smaller than the typical distance of the electron from the nucleus, which is of the order of a0-0.5A = 0.5 × 10-10m, the finite size of the nucleus can be taken into account perturbatively. (a) Assume that...
A long, thick cylindrical conductor of radius a-20 mm, charged with a surface charge density ps 0.01 C/m2, is located in free space. Calculate the energy stored per unit length of the conductor within a radius b - 100 m from the conductor. Indicate your answer in J/m
3) Electrostatic Energy: A sphere of radius A, is charged uniformly with a volume charge density, po. This problem is to be analysed using Gauss's Law. a) State precisely your assumptions regarding the electric field, E, concluded from the symmetries. b) Determine E for r> A |3) Electrostatic Energy: (continued) c) Determine E for 0 <r<A d) Calculate the energy stored in the system. ) Calculate the energy stored in the system
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in its ground state? Which of the following atoms is paramagnetic B) bariwm (ba) O cadmium (Cd 1D) ymerbium (Yb) E) argon (Ar) 16. ー 17. Which of the following statenments is true? The kpion Is orbital is smaller than the helium is cebital because krypton's nuclear charge draws the electrons closer because krypton's p The krypton 1s oebital is smaller than the helium Is orbital and d orbitals crowd the s orbitals...
N10. a. What is the density of air, given P- 80 kPa and T=0°C? b. What is the temperature of air, given P-90 kPa and p 1.0 kg m-3 ? and ρ= 1.2 kg·m-3 ? C. What is the pressure of air, given T-90℉ d. Give 2 combinations of pressure and density that have a temperature of 30°C. e. Give 2 combinations of pressure and density that have a temperature of 0°C. f. Give 2 combinations of pressure and density...
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Problem 2: The state of stress at a point is given by 80 20 40 [a] 20 60 10|MPa 40 10 20 (a) Determine the strains using Young's modulus of 100 GPa and Poisson's ratio of 0.25 (b) Compute the strain energy density using these stresses and strains (c) Calculate the principal stresses and principal stress directions (can use the MATLAB command) (d) Write the strains calculated in (a) above in the form of strain matrixel...