Q6) Choose the best answer for the following objectives: - EELS EDX objective Fast scan for elements Looking for light elements Need for professional Dielectric properties For surface topography Thick sample Thermal properties Attached to AFM Ease of use Chemical bonding

Q: Why we find out the ‘e/m’ ratio of electron then separately measure ‘e’ and ‘m’?

A: We find out 'e/m' ratio of electron then we separately measure 'e' and 'm' because , it is easy to…

Q: Calculate the longest four wavelengths of the Brackett and Bufond series of hydrogen? 8:46

A:

Q: Balmer series lies in which spectrum ? (a) visible (b) ultraviolet (c) infrared (d) partially,…

A: To find- Spectrum in which Balmer series lies. Given- We have Balmer series and its equation for…

Q: 13. (b) Find the higest energy of the photon emitted by a downward electron transition in the Balmer…

A: Photons can be considered as packets of energy. Each packet will have an energy given by, E=hcλ…

Q: the angular momentum of the electron is quantized

A: Which hypothesis gives the quantization of angular momentum of electron.

Q: Assuming that only a single electron is present and a Bohr model, calculate the mean radius, orbital…

A:

Q: Example errn!- Calculate the electron velocty for Bahratom

A: Let, Z be the atomic number of the given atom. Charge on the nucleus = Ze Charge on elecrtron = e…

Q: On what lines the Bohr’s theory of circular orbit for an atom when nucleus is in motion differs from…

A:

Q: (2) Determine, the shortest and longest wavelengths of the Balmer series of hydrogen. (RH = 1.097 ×…

A: The wavelength of lines in hydrogen spectra can be calculated using the Rydberg's formula given by,…

Q: By calculating its wavelength, show that the first line in the Lyman series is UV radiation. nm

A:

Q: Explain why the laser's power has such a high intensity.

A: Laser is Light Amplification by Stimulated Emission od Radiation. I.e molecules or atoms are…

Q: What is the radius in nm of the electron orbit of a hydrogen atom for n = 4?  answer in (nm)

A:

Q: 16). How much energy is generated when a frequency of 2.74 e 14 Hz is created in an electron loss.

A: The energy E of a photon is given by E = hf where h the Planck's constant f is the frequency

Q: Metal surfaces on spacecraft in bright sunlight develop a net electric charge. Do they develop a…

A: As sunlight falls on the metal surface of the spacecraft, photoelectric effects take place. Due to…

Q: Why do we say that ∆t= h/(2 ∆E) is a lower-bound estimate of the lifetime of an atomic state? Why…

A: According to Heisenberg's uncertainty principle, the product of the uncertainty of position Δx and…

Q: 2020 Opener pOLSczAaFfkn118P9giEyU99Jb3622b6FT89cVCdn CIFSLEyhw/viewform?ht.submission…

A: Hey, there are multiple questions posted; we are authorized to answer one question at a time, since…

Q: Using the formula for the hydrogen atom energy levels, En constant can be written in terms of…

A: Given,En =- μe48ε02h21n2RH = μe48ε02h3cRH →R∞ in the limit μ→me(a) This constant be define for a one…

Q: Estimate the wavelength of the electrons in a 300 kV electron microscope.

A: Given voltage difference (V)=300 kV Required  wavelength of electron?

Q: Explain why the term electron cloud is used to describe the electronic arrangement in the quantum…

A: Required : To explain why the term electron cloud is used to describe the electronic arrangement in…

Q: In a multi-electron atom, does a 5s electron have higher or lower energy than a 4f electron?…

A: Concept: The electrons are fundamental particles that they cannot be decomposed into constituents,…

Q: Which of the following is an acceptable set of the quantum numbers (n, I, mı, ms) for an electron in…

A: For an electron in an atom, the 4 quantum numbers have their own set of acceptable values

Q: What is the Zeeman effect? Group of answer choices The magnetic field strength of an electron due to…

A: Zeeman Effect : The splitting of energy levels in atoms due to the difference in electron angular…

Q: What are the differences and similarities between atomic levels, atomic states, and atomic spectral…

A: An atomic level is a characterized by the principal quantum number n. Electrons can occupy atomic…

Q: Calculate the electron velocity Lor Bahratom

A: For Hydrogen like atom Let atomic number be Z then we have by bohr's rule.

Q: How many electrons are in each subshell of the n = 4 shell? (Enter "0" if the subshell is not…

A:

Q: Why is the classical (Rutherford) model for an atom—of electron orbitting around the nucleus—not…

A: According to the Rutherford model (classical method), the electron revolves around the nucleus are…

Q: Why does the energy of characteristic x rays become increasingly greater for heavier atoms?

A: The energy characteristics of x ray can be expressed as

Q: A PMT contains 11 dynodes. If 1 photon strikes the photocathode, how many electrons reach the anode?…

A: solution the given data are below  number of dynodes d=11 number of photons p=1 let a is number of…

Q: Show that if the 63 electrons in an atom of europium were assigned to shells according to the…

A: The nth shell can hold 2n2 electrons. Where n is an integer, defined as the principal quantum…

Q: Do gravitational forces have a significant effect on atomic energy levels?

A: Given: Do gravitational forces have a significant effect on atomic energy levels? Explanation:…

Q: What two-atom interaction model has a force-distance curve closely resembling the force-distance…

A: Answer:   As per the given statement:   The Two atom interaction model has a force-distance curve…

Q: Q2 : Discuss the degeneracy of the energy levels ,then find E(2,4,3)

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Q: The smallest unit of energy is called a quantum leap O E=mc2 O quanta O isotope

A: Introduction: Light energy is a form of electromagnetic radiation, and quanta are the smallest…

Q: In reference to Balmer series, the longest wavelength line is,

A: The Balmer series is defined by the equation,

Q: The alkali metals have the lowest ionization energies (Figure ), yet they have the largest atomic…

A: Ionization energy: It is the amount of energy required by an isolated gaseous atom to remove one…