Suppose the energy required to ionize one mole of atoms of an element is about 2000 kJ/mol. What frequency should one mole of photons have in order to ionize the one mole of atoms?

Q: Which electron transition in the Bohr model would produce light with the largest frequency? A. n=2…

A: Energy of an electron is directly proportional to frequency of light.  Thus, increases in energy of…

Q: The energy required to ionize sodium is 496 kJ/mol. What minimum frequency of light is required to…

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Q: Which of the following orbital designations is (are}not possible? MSP; a . 3 f b. S s c . 4 d d. 1p

A: The impossible orbital designation has to be given.

Q: (i) Define ionization energy. Ionization energy measurements are usually made when atoms are in the…

A: In physics, ionization energy is usually expressed in electronvolts (eV) or joules (J). In…

Q: Tell the maximum number of electrons is for each of the following sets of quantum numbers. A. 4 B. 7

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Q: 49. Write the full electron configuration (1s22s², etc.) for each of the following elements. a.…

A: The electron configuration of any element describes that how the distribution of Electron in its…

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: Heated lithium atoms emit photons of light with an energy of 2.961 × 10−19 J. Calculate the…

A: Given: Energy 2.961x10-19 J The distance between consecutive troughs or peaks is said to be the…

Q: Summarize the rules for the allowable values of the four quan-tum numbers of an electron in an atom.

A: 4 quantum numbers are present to allocate the position of an electron in an atom. The quantum…

Q: Which atom has the largest atomic size, P, As, or Se?

A: The periodic variations in atomic size for neutral atoms can always be stated as follows: As moving…

Q: 7.125 How do ionization energies change with increasing atomic number (a) down a group of elements…

A: Ionisation energy (IE) : The ionisation energy is defined as the amount of energy to remove the most…

Q: Sodium metal requires a photon with a minimum energy of 4.41×10−19J to emit electrons. What is the…

A: Given data, Energy of the photon (E) in J = 4.41 x 10-19 J The frequency of the photon is to be…

Q: A 5d electron has what possible values of the quantum number ml?

A: The possible values of quantum number ml for 5d electrons has to be given.

Q: Which electron transition in the Bohr model would produce light with the largest frequency? n=3→n=1…

A: Bohr model consist of a positively charged nucleus surrounded by  negatively charged orbiting…

Q: In an atom, what is the maximum number of electrons that can have a principal quantum number n = 6?

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Q: In an atom, what is the maximum number of electrons that can have the following quantum numbers? (a)…

A: a) When, n = 4, ms = -1/2The Number of electrons is 2n2, where n is the quantum number. So for n=4,…

Q: An element that is commonly used in solar cells and other photovoltaic devices is reflect by the…

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Q: What is the total number of d electrons in a single (ground state) Te atom?

A: Te is the symbol for tellurium which belongs to oxygen family. Its atomic number is 52. The total…

Q: In recent years, the periodic table has been expanded through element 118, which has a filled 7p…

A: All elements are arranged in a well-organized manner in the periodic table. The periodic table…

Q: In the ground state of 33AS: a) how many electrons have l = 1 as one of the quantum numbers? b) how…

A: Answer (a) the arsenic have 33 electron so the Electronic configuration of arsenic is  As(33) =1s2…

Q: The maximum number electrons in an atom that has the following set of quantum numbers is n = 5 | = 3…

A: There are four quantum numbers which tells about the address of an electron in atom. 1. Principal…

Q: It takes 491 kJ to remove one mole of electrons from the atoms at the surface of a solid metal. How…

A: # 491 kJ energy given to remove one mole of electron# calculate the energy to remove one electron…

Q: In a given atom with a sufficient number of electrons, what is the maximum number of electrons that…

A: Quantum number: The set of quantum number which gives information about the number of electrons,…

Q: What does it mean to say that the energy of the electrons in an atom is quantized?

A: 1 eV of energy is gained by an electron when it passes through 1 volt of potential difference.

Q: Calculate the wavelength of light absorbed by an electron in an atom of hydrogen

A: The wavelength of excited electron in hydrogen spectrum can be calculated using Bohr equation.

Q: Describe the four quantum numbers used to characterize an electron in an atom.

A: The question is based on the concept of atomic structure. We have to describe the four Quantum…

Q: The energy required to ionize boron is 801 kJ/mol. What minimum frequency of light is required to…

A: Energy = 801 kj/mol

Q: What is the maximum number of electrons with the quantum numbers n = 2 l = 1

A: We have to find the maximum number of electrons having quantum numbers n=2 , l=1 Here , 'n' is…

Q: 7. How many photons of light are emitted when the electrons in a million hydrogen atoms drop from…

A: when an electron jumps from higher energy cell to lower energy cell release energy in the form of…

Q: In an atom, how many electrons can be assigned the principal quantum number n = 4 and the spin…

A: All things are provided in handwritten solution

Q: Arrange the following set of atoms in order of decreasing atomic size: Ge, Pb, Sn Which atom has the…

A: Along the period atomic size decreases, since the number of shells increases and also there is…

Q: The n quantum number of an atomic orbital is 5. What are the possible values of l ? If the l quantum…

A: The 4 quantum numbers are  1) Principal quantum number (n) = shell number or orbit number  2)…

Q: 6. The maximum number of electrons possible in the second energy level (n - 2) is

A: For n=2 , There are two subshell one is 2S and other is 2p.

Q: A hydrogen atom in the ground state absorbs a photon of wavelength 95.0 nm.  2 3 4 5 6  What energy…

A: The Rydberg equation is given below.

Q: In an atom, are electrons considered as particles or waves?

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Q: An element X has 16 protons (p+1); 16 electrons (e-1) and 16 neutrons (n0). a) Write the ground…

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Q: The first ionization energy of lead is E, = 715.4 kJ/mol. What is the longest wavelength of light…

A: Given : First ionization energy of lead = 715.4 KJ/mol = 715400 J/mol Since number of atoms of Pb in…

Q: Which electron is, on average, further from the nucleus: an electron in a 3p orbital or an electron…

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Q: The energy required to ionize one mole of lithium atoms is 520kj. What wavelength in nm of light is…

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Q: an eletron in a hydrogen atom transitions  from the 2 to the 8 energy levels. what wavelength in nm…

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Q: Which atom has a larger atomic radius, S or Cl ?Why?

A: Atomic radius may be defined as: -…

Q: How many unpaired electrons are present in an atom with 32 electrons?

A: Unpaired electron means electron that is not paired in the orbital.

Q: An energy of 353 kJ/mol is required to cause a magnesium atom on the metal's surface to lose an…

A:

Q: A certain element has an 5s24d105p2 electron configuration. Which element it is?

A: Electron configuration of an atom or a molecule gives the information about the distribution of…

Q: The lowest energy level in an atom is

A: At the lowest energy level, the 1s orbital is closest to the atomic center which hs two electrons…

Q: rbonate is used in fireworks to colour the flames red. (a) The red colour comes from lines of…

A: alkali and alkaline earth metals belong to the first and second groups of the periodic table…

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.