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 structur

Q: 7.123 One way to estimate the effective charge (Zeff) ofa many-electron atom is to use the equation…

A: Given IE1=1312 kJ/molZeff2n2Zeff=IE1×n21312 kJ/mol Known Values   first ionization energy…

Q: A hydrogen atom in the ground state absorbs a 12.75 eV photon. Immediately after the absorption, the…

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Q: In this lab you will use a spectrometer to measure the wavelengths ofseveral visible lines emitted…

A: Energy level diagram showing the first four lines of Balmer series is,

Q: A) What is meant by a "long" range force, and what is meant by a "short" range force? Which of the…

A: (a) Long range force: These are the forces act on objects outside the range of three angstroms.…

Q: 2. A certain ruby laser emits 1J pulses of light whose wavelength is 694nm. What is the minimum Cr3*…

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Q: Please help me with the last part. Thank you.

A: Given; Energy of incident photon Ep = 2.60 eV n = 3 we are required to find speed of electron…

Q: If the nucleus is a few fm in diameter, the distance between the centers of two protons must be ≈2…

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Q: Q2 // A sample of a certain element is placed in a uniform magnetic field of intensity (0.3 T), what…

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Q: Q : compare between electrostatic force , gravity force and nuclear force ?

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Q: While studying the spectrum of a gas cloud in space, an astronomer magnifies a spectral line that…

A: Write the expression for the Zeeman shift. Here, m represents the mass of electron, c represents…

Q: A laser with power output of 2.0mW at a wavelength of 400nm is projected onto a calcium metal. The…

A: The number of electrons ejected per second can be obtained as

Q: A. The binding energy of Sodium is 2.28 eV. Calculate the number of photoelectrons ejected from a…

A: We are authorized to answer the first question only. Expression for the number of photons from…

Q: Consider the gold isotope 197Au.a. How many electrons, protons, and neutrons are in a neutral 197Au…

A: a) The atomic mass of gold is 197 and the atomic number of the gold is 79. The number of proton is…

Q: A triply ionised beryllium atom (Be+++, Z = 4) has only one electron in orbit about the nucleus. If…

A: It can calculate by atomic transition formula.

Q: The ionization energy of mercury is 10.4eV. What is meant by (i.) electron volt (eV) (ii.)…

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Q: Spectroscopy based on emission techniques is usually considered more sensitive than techniques based…

A: (a) The spectroscopy in which the emission intensity of a sample is measured is called emission…

Q: A visible (violet) emission spectral line for chromium (Cr) occurs at wavelength λ = 425.435 nm.…

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Q: A light detector has an area of 3.1m2 and absorbs 53.9% of the incident light, which is at…

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Q: How can we explain why electrons don’t spiral into the attracting nucleus?

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Q: A hydrogen atom has a radius of 0.05 nm with a position accuracy of 1.0%. Calculate the uncertainty…

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Q: A 12.5 eV electron beam is used to excite a gaseous hydrogen atom at room temperature. Determine the…

A: The relation between the energy and wavelength is  E =h cλ where, h is the Plank's constant, c is…

Q: 1) Fill in the missing information from the table below: # protons # neutrons isotope #electron- Lo…

A: The element with the atomic number (number of protons or number of electrons )17 is chlorine (Cl).

Q: The wavelengths of the Lyman series for hydrogen are given by (a) Calculate the wavelengths of the…

A: The Rydberg constant  RH=1.0973732×107 m-1

Q: The hydrogen atom's nucleus is a proton (mass 1.7 x 1027 kg), outside of which there is a single…

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Q: 3) according to your study to the shell model, answe 1- Explain why the 3D-harmonic oscillator…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: How many possible magnetic quantum numbers (ml) are there for a d-orbital?

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Q: Question 6. a) Photons of incoming radiation have an energy of E = 2500 kJ/mol. Calculate the…

A: The wavelength is related to energy and frequency by E=hν=hcλ Here, E is the energy, h is the…

Q: Unreasonable Results(a) What voltage must be applied to an X-ray tube to obtain 0.0100-fm-wavelength…

A: X-ray tubes are those tubes that emit X-rays when sufficient voltage is passed through them. X-rays…

Q: Using Bohr model for atomic hydrogen, obtain energy levels for the 2s, 3s and 3p states in the…

A: You have asked for different non-related questions to answer. As per our policy, we will answer the…

Q: An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project.…

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Q: 2. (a) What are X-rays? (b) How they are produced? (c) What are the uses of X-rays?

A: a) One of the most energetic members of the electromagnetic spectrum are X - ray.

Q: Question 6. a) Photons of incoming radiation have an energy of E = 2500 kJ/mol. Calculate the…

A: in the above question 6 there are 3 sub parts , all parts are solved in below step.

Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.