Ag 328.1 nm Fe 372.0 nm Au 267.6 nm K 404.7 nm Ba 455.4 nm Mg 285.2 nm Ca 422.7 nm Na 589.6 nm Cu 324.8 nm Ni 341.5 nm

Q: no n=3 n=2 When an electron of an excited hydrogen atom descends, from an initial energy level (n;)…

A:

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: What is the de Broglie wavelength (in meters) of a 148 g baseball thrown at a velocity of 41.1…

A: Given,mass of baseball = 148 gvelocity of baseball = 41.1 m/s

Q: What is the de Broglie wavelength (in meters) of a 148 g baseball thrown at a velocity of 36.1…

A: Mass of tennis ball = 148 g= Velocity = 36.1 m s-1

Q: A sample of copper is bombarded with high energy electrons, which leads to the emission of X-rays.…

A:

Q: Han its positic 2. Which of the following statements is TRUE regarding the photoelectric effect? *…

A: The emission of electrons when suitable frequency of light (i.e. threshold frequency) strikes on the…

Q: Which transition in the hydrogen atom would emit light of a shorter wavelength: (a)   ni=5  --->…

A: There are two transitions given in options - one from 5 to 3 and another from 4 to 2 . we will apply…

Q: 5 Calculate the de Broglie wavelength of (a) a mass of1.0 g travelling at 1.0 m s-1• (b) the same.…

A: (a) a mass of 1.0 g travelling at 1.0 m s-1: De Broglie wavelength, λ=hmv…

Q: At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, with an average…

A:

Q: A student removes the spinning plate from his microwave oven. He places a chocolate bar inside on a…

A:

Q: Consider the following types of electromagnetic radiation: (1) microwave, (2) ultraviolet, (3) radio…

A: Energy of radiation= h×frequency  frequency= c÷wavelength

Q: In an experiment to study the photoelectric effect, a scientistmeasures the kinetic energy of…

A:

Q: The series of emission lines of the hydrogen atom for whichnf = 3 is called the Paschen series. (a)…

A: a) Paschen series fall in infrared region  i.e frequency > 820 nm

Q: An electron microscope focuses electrons through magneticlenses to observe objects at higher…

A: (a) Given : The speed of an electron using in the electron microscope = 5.5x104 m/s According to de…

Q: The energy of an electron in a hydrogen atom is given by the equation: E-2.180 x 10-18 j If a ground…

A: An electron in a hydrogen atom moves to a higher energy level when it absorbs a photon.The…

Q: What is the de Broglie wavelength of an oxygen molecule, O2, traveling at 535 m/s? Isthe wavelength…

A:

Q: When different types of radiation are listed by their energy per photon, which of the following sets…

A: Increasing energy means increase in frequency and decrease in wavelength.

Q: quantum numbers

A:

Q: The most prominent line in the atomic emission spectrum of neon is found at 865.438 nm. Other lines…

A:

Q: A baseball pitcher's fastballs have been clocked at about 94 mph (1 mile = 1609 m).   (a) Calculate…

A: Given data :

Q: Which of the following is wrong ? O A) Excitation is defined as the moving of the electrons from…

A: Electrons from the ground state can be excited to higher state by providing some amount of energy.…

Q: Calculate the wavelength of red light with a frequency of 4.75z104 H, ? (hint: c = f)

A:

Q: A ground-state H atom absorbs a photon of wavelength94.91 nm, and its electron attains a higher…

A: Given: Wavelength of the  absorbed photon =94.91nm wave length of the one of the photon emitted…

Q: 6. A pitcher's fast ball has been clocked at 99 mph. (a) Calculate the wavelength of a 0.141 kg…

A: (a) Calculate the wavelength of a 0.141 kg baseball, in nm at this speed :- By using the De Broglie…

Q: is this quantum number allowed? n=4 l=1 m1 = 2 ms=-1/2, I thought no becuase the value of l=1 and…

A:

Q: 1. Which of the following objects will have the longest de Broglie wavelength? (A) an electron…

A: Answer) De broglie wavelength depends on speed of the object as well as mass of the object.  De…

Q: Be sure to answer all parts. (a) What is the wavelength (in nm) of radiation that has an energy…

A: We know that, E = hc/λ Where,  λ = wavelength  E = energy  h = planks constant = 6.626x10-34 J.s  c…

Q: Calculate the de Broglie wavelength, in nanometers, associated with a 145g basebeall traveling at a…

A: Given:Velocity of baseball = 168 Km/h = 46.67 m/s.Mass of baseball = 145 g = 0.145 Kg

Q: Calculate the de Broglie wavelength of the following:(a) an electron moving at a speed of 1.00 × 103…

A: The formula to calculate the de broglie wavelength is ; λ=hmv where h is planck's constant whose…

Q: Compare the wavelength for an electron (mass = 9.11 * 10-31 kg) traveling at a %3D speed of 1.0 *…

A:

Q: tromay Com Uration T AT t TC taUTC table vy ordering these types of radiation by increasing…

A: Interpretation: The given table is to be completed by ordering given type of radiation by increasing…

Q: The hydrogen in interstellar space near a star is largely ionized by the highenergy photons from the…

A: Given : The wavelength of the photon absorbed = 65 nm And the hydrogen atom is in ground state.

Q: All of the following are used to characterize electromagnetic radiation except Group of choices:…

A: Electromagnetic radiation: There is a wide spectrum of electromagnetic waves, known as…

Q: Jessica is olanning on painting her room, She happens to like light that has a wavelength of 96.3.m.…

A: Using the relation between wavelength and frequecy and speed of light we can find frequecy of light…

Q: What is the wavelength (in nanometers) emitted during a transition from the n; = 3 state to the nf =…

A: The energy level of an atom depends on the state of the atom and atomic number. The energy in a…

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.