A proton is approximately 2000 times heavier than an electron. How would the speeds of these particles compare if their corresponding wavelengths were about equal?

Q: (a) If the kinetic energy of an electron is known to liebetween 1.59 × 10-19 J and 1.61 × 10-19 J,…

A: (a)

Q: How does the quantum-mechanical model account for the chemical properties of the elements?

A: The chemical properties of any element largely depends upon the electronic arrangement in their…

Q: A neon atom is found with a de Broglie wavelength of 34.0 pm. At what velocity is this neon atom…

A: The de Broglie hypothesis: De Broglie proposed that just as light has both wave-like and…

Q: 6.126 The sun is surrounded by a white circle of gaseousmaterial called the corona, which becomes…

A: To find: The temperature of the sun's corona

Q: Which of the following quantum numbers describes the shape of an orbital? O Schrödinger quantum…

A: There are 4 different quantum numbers to describe the various aspects of an electron like position,…

Q: Given a particular value of the principal quantum number (n), which quantum number primarily…

A: n= principal quantum number denotes size of shell l= azimuthal quantum number denotes no of subshell…

Q: 5. No simple equations like the Bohr equations exist for atoms other than hydrogen. Explain why this…

A: According to Bohr's theory, negatively charged electrons revolves around a positively charged…

Q: Write the quantum numbers for each of the six electrons of carbon

A: The four quantum numbers are 1-principal quantum number (n) 2-Azimuthal quantum number (l), 3-The…

Q: An electron in an atom can be described by four quantum numbers. Provide a description of each and…

A: Quantum numbers  Quantum numbers help to determine the position of electrons in an atom. A…

Q: Why do atoms, when excited withenergy, emit light only at particular wavelengths?

A: When atoms gain energy , there is always excitation of energy. They get excited and move to higher…

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

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 electrons have the quantum number value of 1 for l on an atom of Br?

A: The atomic number of Br is 35. Its electronic configuration is:

Q: Highly excited atoms have electrons with large principal quantum numbers. Such Rydberg atoms have…

A: a) The energy level for an atom is given by the expression is as follows, The difference in energy…

Q: Give an approximate range of wavelengths for type of electromagnetic radiation and summarize the…

A: a. Gamma rays:

Q: Define the term principal quantum number?

A: Quantum numbers are used to describe the position and energy of the electron in an atom. There are…

Q: If the kinetic energy of an electron is known to lie between 1.59 x10-19J and 1.61x10-19J, what is…

A: To answer your question, yes, you will need the velocity in order to solve the second part and as…

Q: -What are the physical meaning of the following terms? a. Corresponding principle b. Principle…

A: The energy of an electron and the most likely distance of the electron from the nucleus are…

Q: Why is it that the electron seems to have no size other than its wavelength, while the proton and…

A: Electrons have mass and they are lighter than proton and neutron.

Q: What is the quantum number for 41st e?

A: To determine the quantum number for 41st electron, it is necessary to know the electronic…

Q: Write one set of quantum numbers for an electron 2s orbital.

A: Since the quantum numbers are n = principle quantum number = shell number  l =  orbital angular…

Q: What is the de Broglie wavelength of an electron? What determines the value of the de Broglie…

A: Both matter and waves exhibit dual nature and show both, the particle and the wave properties.  The…

Q: Figure 6 D

A: De Broglie wavelength refers to the wavelength of the particle which is related to momentum,p as…

Q: 10. What is the quantum numbers of the last electron of arsenic and nickel ?

A: quantum numbers  Principal quantum number(n) Azimuthal quantum number(l) Magnetic quantum number(mi)…

Q: The relationship between speed, wavelength and frequency is: Ov=- C. Ov= Ov=1+ Ou=c+

A: Write the relation between speed, wavelength and frequency ?

Q: What are the quantum numbers and their properties?

A:

Q: The meter was defined in 1963 as the length equal to 1,650,763.73 wavelengths of theorange-red…

A: Given: 1m = 1,650,763.73 wavelengths of theorange-red radiation emitted by the krypton-86 atom

Q: Identify the following individuals and their contributions to the development of quantum theory:…

A:

Q: calculate the velocities of electrons with de broglie wavelengths of 1.0 x 10^2 nm and 1.0nm,…

A: De Broglie stated an equation which gives us the relation between the wavelength of the fast-moving…

Q: or each of the following statements, identify which quantum number is being described or referenced.

A: The set of numbers used to describe the position and energy of the electron in an atom are called…

Q: what are the 17 sets of quantum numbers that discribe the 17 electrons of chlorine

A: There are total 4 sets of quantum numbers 1. Principle quantum number (n) : It indicates shells…

Q: a) n=5, 1=4 b) n=4, 1=1 c) n=2, 1=0, m=+2 d) n=3, 1=2, m=+1 e) n=3, l=2

A:

Q: Why is it more difficult to cause photons to be emitted from neon?

A: Ionization energy: Ionization energy is the minimum amount of energy required to remove the most…

Q: I need to give a diagram of the Hydrogen emission spectrum, show the emission lines, give their…

A: E = hv

Q: What must be the velocity, in meters per second, of a beam of electrons if they are to display a de…

A: De Broglie gave a quantitative meaning to his idea by proposing an equation which relates the wave…

Q: What are the allowed values of ml quantum number if the n quantum number has a value of 2?

A: Given that,  Principle quantum number n = 2 To determine the allowed values of magnetic quantum…

Q: Here is oh of the probability of an atom moving with a particular speed, for a sample of neon gas at…

A: We can answer this question by just evaluating the graph. Most likely speed means the speed at which…

Q: Compare photons of gamma and infrared radiation. Which has the longer wavelength? Which has the…

A: The two radiations given are, 1) Gamma radiation : Wavelength range (<100 pm i.e 1.0 X 10-10 m)…

Q: Without using quantum numbers, describe the differences between the shells, subshells, and orbitals…

A: Answer a set of orbitals in the same energy level are called shells  set of orbitals having same…

Q: What is the Quantum Number for 73rd e?

A: Quantum number are a set of numbers which basically give us information regarding the position of an…

Q: How to measure the emission spectrum of Hydrogen, Neon and mercury vapors?

A: Emission spectrum of hydrogen: If we take hydrogen gas in a glass tube and pass electric current,…

Q: How can an electron get from one lobe of a p orbital to the other without going through the point of…

A: The area in which probability of finding an electron is high is termed as lobe. The shape of orbital…

Q: Estimate the de Broglie wavelength of an alpha particle that has a kinetic energy of 1.47 keV. ___m

A: The de Broglie wavelength is given by  where h = Plank's constant = 6.626 X 10-34 Js p = momentum…

Q: Solving the ultraviolet catastrophe (i.e., explaining why everyday objects do not radiate UV light),…

A: Given MCQ Statement:- Solving the ultraviolet catastrophe led directly to which of the following…

Q: 2. What is the de Broglie wavelength of an electron moving with a speed that is 12% of the speed of…

A:

Q: What is the Quantum Number for 33rd e?

A: Quantum numbers is a set of four numbers which give all information of an electron present in an…

Q: What is the I quantum number for an electron in 8 d?

A: Quantum numbers can be defined as the set of 4 numbers with the help of which we can get complete…

Q: How to find the difference in energy between two level responsible for ultraviolet emission at…

A: The difference in energy between two levels (∆E) = h ν = h c/ λ where, ∆E = difference in energy…

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.