The electron microscope has been widely used to obtain highly magnified images of biological and other types of materials. When an electron is accelerated through a potential field, it attains a speed of 9.38 x 10° m/s. a. What is the characteristic wavelength of this electron? b. What region of the electromagnetic spectrum does this correspond to? c. Is this wavelength comparable to the size of atoms?

Q: g. Differentiate between acute and chronic radiation sickness. h. If the wavelength on the…

A: Solution : g)Acute radiation sickness :             Acute radiation sickness occurred due to…

Q: Visible light contains colors from red to violet.a. What color of light has the shortest…

A: When light has considered wave nature, then there are many lights present based on their frequency…

Q: In the ground state of mercury, Hg, a. how many electrons occupy atomic orbitals with n = 3? b. how…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: Consider a red light with  = 750 nm and a green light  = 550 nm (a) Which light travels a greater…

A: Answer (a) Green Light will travel greater distance in 1 second (b) Green light will have more…

Q: 32) Electrons filling up the orbitals from low to high is known as (the) A) Aufbau principle. C)…

A: Aufbau principle : Aufbau principal tells about the manner in which electrons are filled in the…

Q: List all the orbitals in each principal level. Specify the three quantum numbers for each orbital.a.…

A: Quantum number is the set of number that describes the state of an electron. There are four quantum…

Q: 9. How many photons are absorbed by a single atom in order for an electron to move to a higher…

A: The no of photon absorbed is the integral multiple of hv . Where v is frequency of radiation .

Q: Which quantum number represent a specific orbital in an atom? * a. n b. l c. ml d. ms

A: n = principle quantum number l= azimuthal quantum number ml = magnetic quantum number  Ms = spin…

Q: used in certain analyses for organic| compounds because it is the most intense wavelength emitted by…

A: Wavelength = 254 nm

Q: The type of light that can be emitted when one electron orbiting a hydrogen atom drops down in its…

A: Bohr's theory explain the emission spectra of hydrogen atom.

Q: In his explanation of the threshold frequency in the photoelectric effect, Einstein reasoned that…

A: Work function is the minimum energy required to cause a photoelectric effect on that metal (remove…

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI…

A:

Q: 6.61 Describe the shapes of s, p, and d orbitals. How are theseorbitals related to the quantum…

A: The shapes of s, p, and d orbitals and how these orbitals related to the quantum numbers n, l, and m…

Q: How many orbitals have a principal quantum number of 3 and a secondary quantum number of 2? What…

A: There are four atomic quantum numbers: Principle quantum number (n): It gives information about the…

Q: In his explanation of the threshold frequency in the photo-electric effect, Einstein reasoned that…

A: Introduction :  Threshold frequency is the minimum amount of energy required to eject an electron…

Q: During light emission of red light, when is a photon emitted? Is this a high or low energy…

A:

Q: In his explanation of the threshold frequency in the photoelectric effect, Einstein reasoned that…

A: From the concept of threshold frequency and wavelength and work function we get the answer

Q: An x-ray has a wavelength of 4.59 Å. Calculate the energy (in J) of one photon of this radiation.…

A: Photon is a form of light which break the bond of molecule. It is in packed form or bundle. Energy…

Q: 25. The Balmer series lies primarily in what region of the electromagnetic spectrum? c. near…

A: The emission spectrum of atomic hydrogen has been divided into number of spectral series, with…

Q: Which subshell can have a maximum of 2 electrons? d Of S

A: Which orbital have maximum of 2 e-?

Q: 8) Sodium Emission -/2 point The energy difference between two energy levels in a sodium atom is…

A: The energy of the radiation is quantized. The energy of radiation is divided into photons. According…

Q: How many orbitals are in the following subshells? S: P: D: F:

A:

Q: how many orbitals exist in a d sub shell?

A: We are to find the number of orbitals in a d sub shell.

Q: A certain light wave has a measured frequency of 4.15 x 1014 s-1. What is the wavelength of this…

A: We have frequency f = 4.15×1014 s-1. c = speed of light = 3 x 108 m/sec c= λf where λ = wavelength…

Q: . Technetium is not found naturally on Earth; it must be synthesised in the laboratory. Nonetheless,…

A:

Q: 2) A sample of atomic H gas, initially in the ground state, sequentially absorbs two photons at 1874…

A: The atomic hydrogen absorbs 1874 nm wavelength radiation. Let's say that the e- will transit from…

Q: Emissions are observed at wavelength of 383.65 and 379.90 nm for transitions from excited states of…

A: Given values are given as below: Wavelength, λ1 = 383.65 nm or 383.65× 10-9 m Wavelength, λ2 =…

Q: For a particular metal, electrons are emitted only when the wavelength of the radiation is less than…

A:

Q: 2. Electrons are in different orbitals outside of the nucleus. As we know, the nucleus is positively…

A:

Q: Calculate the wavelength

A:

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom or molecu C…

A: Energy E =h.cλ So wavelength is inversely proportional to the energy so Transition in the highest…

Q: hydrogen atoms absorb energy so that the electrons are excited to the energy level and equals seven…

A: (a)Given information,Transition takes place from n=7 to n=1.Transition takes place from n=7 to…

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI…

A: Given: The diagram of transition of electron from one state to another as follows:

Q: A photon has a frequency of 6.5 × 109 Hz. (a) Convert  this frequency into wavelength (nm). Does…

A: Given: Frequency = 6.5 × 109 Hz

Q: 4. Electrons must gain energy in order to move from lower energy levels to higher energy levels.…

A: As per Bohr model of atom, electrons are known to found in energy levels surrounding the nucleus.…

Q: Consider only transitions involving the following energy levels for the H atom. n =5 n = 4 n = 3 n =…

A: Emission of lines: Total number of transitions possible from the higher principal quantum shell to…

Q: A photon of blue light has a frequency of 7.70 × 10¹⁴ Hz. Calculate the wavelength of this photon (c…

A:

Q: X-rays are often used as a diagnostic tool to measure bone tissue. The frequency of a particular…

A: The wave length can be calculated as follows

Q: A photon of blue light has a frequency of 8.00 × 10¹⁴ Hz. Calculate the wavelength of this photon (c…

A:

Q: 4. Consider only the four following quantum levels for the H atoms (n=4, n=3, n=2, and n=1). The…

A: For the maximum energy or shortest wavelength we should follow formula . E=(1/n12-1/n22)

Q: E E| A B E E D

A:

Q: Part a) A line in the spectrum of atomic mercury has a wavelength of 252 nm. When mercury emits a…

A: a. We know that frequency v = c/lambda  Here, c = velocity of light = 3*10^8 m/s  Lambda =…

Q: you made the wavelength of the light shorter and the frequency higher. What effect did this have on…

A: Energy of a light is directly proportional to frequency and inversely proportional to wavelength of…

Q: 41. Consider the following waves representing electromagnetic ra- diation: 1.6 x 103 m - Wave a Wave…

A:

Q: How are wavelength and frequency related? A. Wavelength is indepen

A: Wavelength is the distance between the two point’s successive highest points or lowest points in a…

Q: Imagine that the cylinders in Figure 6 depict orbitals in another universe. Which statement about…

A: The solution is given below -

Q: What is a photon? How is the energy of a photon related to its wavelength? Its frequency?

A: The smallest particle which is able to represent the quantum of visible light and any…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.