10. Using D = 3x³yi-2x²y4z6j+y³z²k from problem #9 Find: VxD @ (4, 3, 2).

What is the magnitude of the electric field at a distance of 0.1 nm from a thorium nucleus? I have tried 2.304E-8 and 2.07E-6 and they are both wrong

Problem 7:   Consider what you've learned so far regarding the nucleus of an atom.

Question 7 The wave function of an electron in a hydrogen - like atom is (r) = Cea where a = ao/Z with a being the Bohr radius and Z the atomic number. The nuclear charge is Ze and the atom contains only one electron. a) Compute the normalization constant. b) If the nuclear numbers are A = 173 and Z= 70, what is the probability that the electron is in the nucleus of radius R? Assume R = 1.2x4¹/³ fm 0.

= Using the formula for the hydrogen atom energy levels, En constant can be written in terms of fundamental quantities, RH = Me 4 8€ ²h³c Me4 1 860²h² n²¹ the Rydberg and its value approaches, RH → R = 10,973,731.6 m¹ in the limit μ→ me. (a) How would this constant be defined for a one-electron species containing Z protons in its nucleus? Consider how this changes the form of the Hamiltonian and the energy levels for that Hamiltonian. (b) The hydrogen atom emission lines in the Balmer series (n₂ = 2) lie in the visible portion of the electromagnetic spectrum. Would this also be true if Z> 1? Find the wavelength (in nm) of the n = 32 emission in hydrogen and that for a one-electron species with Z = 2. (You will be asked to report a quantity on the quiz that depends on these two values.)

Explain the physics behind the fourth assumption in Bohr's atomic model, i.e., mevr-nh/2, where me and v are the mass and velocity of electron around the nucleus, respectively, r is the radius of an allowed orbit, n is an integer and h is the Plank constant.

What are (a) the x component, (b) the y component, and (c) the z component of ?→=?→−?→+?→�→=�→-�→+�→ if ?→=7.1?̂ +5.0?̂−2.1?̂�→=7.1�̂+5.0�̂-2.1�̂ , ?→=−8.9?̂ +8.6?̂+2.8?̂�→=-8.9�̂+8.6�̂+2.8�̂ , and ?→=1.1?̂ +4.1?̂+2.5?̂�→=1.1�̂+4.1�̂+2.5�̂ . (d) Calculate the angle between ?→�→ and the positive z axis. (e) What is the component of ?→�→ along the direction of ?→�→ ? (f) What is the magnitude of the component of ?→�→ perpendicular to the direction of ?→�→ but in the plane of ?→�→ and ?→�→ ?

Why does this part not require a Sin(30) to decompose the MG(Sin(30))(.8)? The example gives a correct answer.

Is this the correct way to solve for W(ca)

a. Is a 4p → 4s transition allowed in sodium? If so, what is its wavelength? If not, why not?b. Is a 3d → 4s transition allowed in sodium? If so, what is its wavelength? If not, why not?